diff --git a/frontend/public/schemas/20251121/linkml/manifest.json b/frontend/public/schemas/20251121/linkml/manifest.json
index 61be885f49..2330bf7547 100644
--- a/frontend/public/schemas/20251121/linkml/manifest.json
+++ b/frontend/public/schemas/20251121/linkml/manifest.json
@@ -1,5 +1,5 @@
 {
-  "generated": "2026-02-08T12:55:52.642Z",
+  "generated": "2026-02-08T13:00:58.074Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 2916,
   "categoryCounts": {
diff --git a/schemas/20251121/linkml/manifest.json b/schemas/20251121/linkml/manifest.json
index 2330bf7547..ad9fa6b506 100644
--- a/schemas/20251121/linkml/manifest.json
+++ b/schemas/20251121/linkml/manifest.json
@@ -1,5 +1,5 @@
 {
-  "generated": "2026-02-08T13:00:58.074Z",
+  "generated": "2026-02-08T15:20:09.940Z",
   "schemaRoot": "/schemas/20251121/linkml",
   "totalFiles": 2916,
   "categoryCounts": {
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/approximate.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/approximate.yaml
new file mode 100644
index 0000000000..c108f8d40f
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/approximate.yaml
@@ -0,0 +1,85 @@
+# ==============================================================================
+# LinkML Slot Definition: approximate
+# ==============================================================================
+# Whether a value, location, or quantity is estimated rather than exact.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **DQV**       | `dqv:precision`       | dqv.ttl:184-186          | related | "Precision is a quality dimension, which refers to the recorded level of    |
+# |               |                       |                          |         | details." A Dimension (class), not a boolean property. Conceptually related |
+# |               |                       |                          |         | (precision vs approximation) but structurally different.                    |
+#
+# CREATED: 2026-02-03
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/approximate
+name: approximate
+title: Approximate
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  dqv: http://www.w3.org/ns/dqv#
+default_prefix: hc
+imports:
+- linkml:types
+slots:
+  approximate:
+    slot_uri: hc:approximate
+    description: >-
+      Indicates that a value, location, or quantity is estimated or close
+      to the actual figure, but is not exact or precise.
+    alt_descriptions:
+      nl: >-
+        Geeft aan dat een waarde, locatie of hoeveelheid geschat is of
+        dicht bij het werkelijke cijfer ligt, maar niet exact of precies is.
+      de: >-
+        Gibt an, dass ein Wert, ein Standort oder eine Menge geschatzt
+        oder nahe am tatsachlichen Wert liegt, aber nicht exakt oder
+        prazise ist.
+      fr: >-
+        Indique qu'une valeur, un emplacement ou une quantite est estime
+        ou proche du chiffre reel, mais n'est pas exact ou precis.
+      ar: >-
+        يشير إلى أن قيمة أو موقعًا أو كمية مقدرة أو قريبة من الرقم
+        الفعلي، لكنها ليست دقيقة أو محددة.
+      id: >-
+        Menunjukkan bahwa suatu nilai, lokasi, atau kuantitas merupakan
+        perkiraan atau mendekati angka sebenarnya, tetapi tidak tepat
+        atau presisi.
+      zh: >-
+        表示某个值、位置或数量是估计的或接近实际数字的，但不是精确的。
+      es: >-
+        Indica que un valor, ubicacion o cantidad es estimado o cercano
+        a la cifra real, pero no es exacto o preciso.
+    structured_aliases:
+      - literal_form: Benadering
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Naherungswert
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Approximation
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تقريب
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Perkiraan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 近似值
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Aproximacion
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: boolean
+    multivalued: false
+    aliases:
+      - is_or_was_approximate
+    related_mappings:
+      - dqv:precision  # dqv.ttl:184-186 - "Precision is a quality dimension, which refers to the recorded level of details." A Dimension class, not a boolean property.
+    annotations:
+      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/grant.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/grant.yaml
new file mode 100644
index 0000000000..74ed513c1b
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/grant.yaml
@@ -0,0 +1,91 @@
+# ==============================================================================
+# LinkML Slot Definition: grant
+# ==============================================================================
+# Officially give, bestow, or transfer a right, privilege, or sum of money.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **Schema.org**| `schema:Grant` (CLASS)| schemaorg.owl:2369-2378  | —       | "A grant, typically financial or otherwise quantifiable, of resources."      |
+# |               |                       |                          |         | This is a CLASS, not a property. Cannot be used as slot_uri or mapping.     |
+# | **Schema.org**| `schema:funding`      | schemaorg.owl:18774-18800| related | "A Grant that directly or indirectly provide funding or sponsorship for     |
+# |               |                       |                          |         | this item." Domain: Product|CreativeWork|Event|Person|Organization. About   |
+# |               |                       |                          |         | receiving a grant (inverse), and financially specific.                      |
+#
+# NOTE: The original file had slot_uri: schema:grant, but schema:Grant is a
+# Class, not a property. Reverted to hc:grant.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/grant
+name: grant
+title: Grant
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+default_prefix: hc
+imports:
+- linkml:types
+slots:
+  grant:
+    slot_uri: hc:grant
+    description: >-
+      Officially gives, bestows, or transfers a right, privilege, permission,
+      or sum of money to an individual or entity.
+    alt_descriptions:
+      nl: >-
+        Verleent, schenkt of draagt officieel een recht, voorrecht,
+        toestemming of geldbedrag over aan een individu of entiteit.
+      de: >-
+        Verleiht, gewahrt oder ubertragt offiziell ein Recht, Privileg,
+        eine Genehmigung oder einen Geldbetrag an eine Person oder Einheit.
+      fr: >-
+        Accorde, confere ou transfere officiellement un droit, un privilege,
+        une permission ou une somme d'argent a un individu ou une entite.
+      ar: >-
+        يمنح أو يخول أو ينقل رسميًا حقًا أو امتيازًا أو إذنًا أو مبلغًا
+        ماليًا إلى فرد أو كيان.
+      id: >-
+        Secara resmi memberikan, menganugerahkan, atau mentransfer hak,
+        hak istimewa, izin, atau sejumlah uang kepada individu atau
+        entitas.
+      zh: >-
+        正式授予、赐予或转让权利、特权、许可或一笔资金给个人或实体。
+      es: >-
+        Otorga, concede o transfiere oficialmente un derecho, privilegio,
+        permiso o suma de dinero a un individuo o entidad.
+    structured_aliases:
+      - literal_form: Verlening
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Gewahrung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Octroi
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: منح
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Pemberian
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 授予
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Otorgamiento
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    multivalued: true
+    aliases:
+      - grants_or_granted
+    related_mappings:
+      - schema:funding  # schemaorg.owl:18774-18800 - "A Grant that directly or indirectly provide funding or sponsorship for this item." About receiving a grant (inverse direction), financially specific.
+    annotations:
+      custodian_types: '["*"]'
+    comments:
+      - "NOTE: The original file had slot_uri: schema:grant and exact_mappings: schema:grant, but schema:Grant is a Class (not a property) in Schema.org. Reverted slot_uri to hc:grant and removed incorrect exact_mapping."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/grant_access_to.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/grant_access_to.yaml
index d552180dca..54b5374203 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/grant_access_to.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/grant_access_to.yaml
@@ -92,6 +92,8 @@ slots:
       - dcat:accessService  # dcat3.ttl:536
     aliases:
       - is_or_was_provides_access_to
+      - grants_or_granted_access_through
+      - grant_access_to
     comments:
       - |
         **DCAT ALIGNMENT**: dcat:servesDataset for data service relationship.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_basionym.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_basionym.yaml
new file mode 100644
index 0000000000..ef0aa35df0
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_basionym.yaml
@@ -0,0 +1,81 @@
+# ==============================================================================
+# LinkML Slot Definition: has_basionym
+# ==============================================================================
+# Original validly published name upon which a new taxonomic combination is based.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# No standard ontology match found. "Basionym" is a domain-specific term from
+# botanical nomenclature (International Code of Nomenclature for algae, fungi,
+# and plants). None of the available ontologies (Schema.org, DCTerms, PROV-O,
+# CIDOC-CRM, DCAT, SKOS, FOAF, ORG, DQV, BIBFRAME, PREMIS, GeoNames, DwC,
+# RiC-O) define a property for this concept.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/has_basionym
+name: has_basionym
+title: Has Basionym
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+default_prefix: hc
+imports:
+- linkml:types
+slots:
+  has_basionym:
+    slot_uri: hc:hasBasionym
+    description: >-
+      Identifies the original, validly published name (the basionym) upon
+      which a new combination or name for a taxon is based.
+    alt_descriptions:
+      nl: >-
+        Identificeert de oorspronkelijke, geldig gepubliceerde naam (het
+        basyoniem) waarop een nieuwe combinatie of naam voor een taxon
+        is gebaseerd.
+      de: >-
+        Identifiziert den ursprunglichen, gultig veroffentlichten Namen
+        (das Basionym), auf dem eine neue Kombination oder ein neuer Name
+        fur ein Taxon basiert.
+      fr: >-
+        Identifie le nom original, valablement publie (le basionyme), sur
+        lequel une nouvelle combinaison ou un nouveau nom pour un taxon
+        est base.
+      ar: >-
+        يحدد الاسم الأصلي المنشور بشكل صحيح (الاسم القاعدي) الذي تستند
+        إليه تركيبة أو اسم جديد لوحدة تصنيفية.
+      id: >-
+        Mengidentifikasi nama asli yang diterbitkan secara sah (basionim)
+        yang menjadi dasar kombinasi atau nama baru untuk suatu takson.
+      zh: >-
+        标识作为分类群新组合或新名称基础的原始有效发表名称（基名）。
+      es: >-
+        Identifica el nombre original, validamente publicado (el basonimo),
+        sobre el cual se basa una nueva combinacion o nombre para un taxon.
+    structured_aliases:
+      - literal_form: Basyoniem
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Basionym
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Basionyme
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: الاسم القاعدي
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Basionim
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 基名
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Basonimo
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    inlined: false
+    annotations:
+      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_description.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_description.yaml
index 2a42736e7c..c42be0b132 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/has_description.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_description.yaml
@@ -47,5 +47,7 @@ slots:
       - has_or_had_administration_description
       - has_or_had_annex_description
       - has_or_had_archive_description
+      - is_or_was_historic_building_description
+      - historic_building_description
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_hypernym.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_hypernym.yaml
index fab342820c..07a1b0dbd4 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/has_hypernym.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_hypernym.yaml
@@ -96,5 +96,7 @@ slots:
       - has_or_had_hypernym
       - has_or_had_parent
       - has_parent
+      - is_or_was_higher_classification
+      - higher_classification
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_position.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_position.yaml
new file mode 100644
index 0000000000..b088a0fa1d
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_position.yaml
@@ -0,0 +1,96 @@
+# ==============================================================================
+# LinkML Slot Definition: has_position
+# ==============================================================================
+# Official role, job title, rank, or placement held within an organization.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **Schema.org**| `schema:jobTitle`     | schemaorg.owl:23787-23810| close   | "The job title of the person." Domain: Person, Range: Text|DefinedTerm|     |
+# |               |                       |                          |         | Role|URL. Person-specific; this slot covers entities too plus rank and       |
+# |               |                       |                          |         | placement, not just job title.                                              |
+# | **Schema.org**| `schema:roleName`     | schemaorg.owl:33901-33920| close   | "A role played, performed or filled by a person or organization." Domain:   |
+# |               |                       |                          |         | Role. Names a role but domain is Role class, not the entity holding it.     |
+# | **W3C Org**   | `org:role`            | org.rdf:623-645          | related | "Indicates the Role that the Agent plays in a Membership relationship with  |
+# |               |                       |                          |         | an Organization." Domain: Membership|Post. About the role within a          |
+# |               |                       |                          |         | membership context, not the position itself.                                |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/has_position
+name: has_position
+title: Has Position
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  org: http://www.w3.org/ns/org#
+default_prefix: hc
+imports:
+- linkml:types
+slots:
+  has_position:
+    slot_uri: hc:hasPosition
+    description: >-
+      Specifies the official role, job title, rank, or placement held by an
+      individual or entity within an organization, hierarchy, or system.
+    alt_descriptions:
+      nl: >-
+        Specificeert de officiele rol, functietitel, rang of plaatsing die
+        een individu of entiteit bekleedt binnen een organisatie, hierarchie
+        of systeem.
+      de: >-
+        Gibt die offizielle Rolle, Berufsbezeichnung, den Rang oder die
+        Platzierung an, die eine Person oder Einheit innerhalb einer
+        Organisation, Hierarchie oder eines Systems innehat.
+      fr: >-
+        Specifie le role officiel, le titre de poste, le rang ou le
+        placement detenu par un individu ou une entite au sein d'une
+        organisation, d'une hierarchie ou d'un systeme.
+      ar: >-
+        يحدد الدور الرسمي أو المسمى الوظيفي أو الرتبة أو الموضع الذي
+        يشغله فرد أو كيان داخل منظمة أو تسلسل هرمي أو نظام.
+      id: >-
+        Menentukan peran resmi, jabatan, pangkat, atau penempatan yang
+        dipegang oleh individu atau entitas dalam organisasi, hierarki,
+        atau sistem.
+      zh: >-
+        指定个人或实体在组织、层级结构或系统中担任的正式角色、职位名称、等级或位置。
+      es: >-
+        Especifica el rol oficial, titulo de puesto, rango o ubicacion que
+        un individuo o entidad ocupa dentro de una organizacion, jerarquia
+        o sistema.
+    structured_aliases:
+      - literal_form: Positie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Position
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Poste
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: منصب
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Posisi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 职位
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Posicion
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    aliases:
+      - is_or_was_position
+    close_mappings:
+      - schema:jobTitle  # schemaorg.owl:23787-23810 - "The job title of the person." Domain: Person. Person-specific; this slot is broader.
+      - schema:roleName  # schemaorg.owl:33901-33920 - "A role played, performed or filled by a person or organization." Domain: Role class.
+    related_mappings:
+      - org:role  # org.rdf:623-645 - "Indicates the Role that the Agent plays in a Membership relationship." Domain: Membership|Post.
+    annotations:
+      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_provenance.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_provenance.yaml
index dc63a502aa..d4cd62ca42 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/has_provenance.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_provenance.yaml
@@ -42,6 +42,8 @@ slots:
       - provenance
       - has_or_had_provenance_path
       - has_provenance_path
+      - has_or_had_web_claim
+      - has_web_claim
     annotations:
       custodian_types: '["*"]'
       specificity_score: '0.2'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_uri.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_uri.yaml
index 84094cf861..d19a61dfde 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/has_uri.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/has_uri.yaml
@@ -7,7 +7,7 @@
 #
 # | Ontology      | Property              | File/Line            | Mapping | Notes                              |
 # |---------------|-----------------------|----------------------|---------|------------------------------------|
-# | **Schema.org**| `schema:url`          | schemaorg.owl:39120-39140| exact | "URL of the item." Domain: Thing.  |
+# | **Schema.org**| `schema:url`          | schemaorg.owl:39120-39140| related | "URL of the item." Domain: Thing.  |
 #
 # CREATED: 2026-02-03
 # UPDATED: 2026-02-08 - Pass 1: added multilingual, removed redundant exact_mapping, cleaned prefixes
@@ -25,7 +25,7 @@ imports:
 - linkml:types
 slots:
   has_uri:
-    slot_uri: schema:url
+    slot_uri: hc:hasURI
     description: >-
       The unique sequence of characters that identifies a logical or physical
       resource on a network or the internet.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/has_web_claim-CONTINUE.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/has_web_claim-CONTINUE.yaml
deleted file mode 100644
index 8b811f298c..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/has_web_claim-CONTINUE.yaml
+++ /dev/null
@@ -1,22 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/has_web_claim
-name: has_web_claim
-title: has_web_claim
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  has_web_claim:
-    name: has_web_claim
-    title: has_web_claim
-    description: Web claim or assertion about the entity.
-    slot_uri: hc:hasWebClaim
-    range: string # uriorcurie
-    multivalued: true
-    aliases:
-      - has_or_had_web_claim
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/heritage_holding.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/heritage_holding.yaml
deleted file mode 100644
index 89b692eeda..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/heritage_holding.yaml
+++ /dev/null
@@ -1,65 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/heritage_holding
-name: heritage_holding_slot
-title: Heritage Holdings Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  heritage_holding:
-    description: 'What heritage materials the commercial organization preserves.
-
-
-      Describes collection scope:
-
-      - **Corporate records**: Business documents, board minutes, correspondence
-
-      - **Product development**: Design drawings, prototypes, patents, R&D notebooks
-
-      - **Marketing materials**: Advertisements, brochures, packaging, logos
-
-      - **Manufacturing artifacts**: Machinery, tools, production equipment
-
-      - **Photographic collections**: Corporate photography, product images, facilities
-
-      - **Audiovisual materials**: Commercials, promotional films, oral histories
-
-      - **Publications**: Annual reports, employee newsletters, trade catalogs
-
-      - **Brand objects**: Historic products, packaging samples, promotional items
-
-
-      Heritage holdings reveal collection depth and preservation commitment.
-
-
-      Examples:
-
-      - "Brewing equipment (1867-present), Advertising archive, Bottle/label collections, Photography"
-
-      - "Vehicle prototypes, Engineering drawings, Patent documents, Manufacturing records"
-
-      - "Perfume formulas (1920s-present), Bottle designs, Fashion sketches, Advertising campaigns"
-
-      - "Computer hardware (1960s-present), Technical manuals, Software code, Oral histories"
-
-      '
-    range: string
-    multivalued: true
-    slot_uri: schema:owns
-    aliases:
-      - is_or_was_heritage_holding
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - schema:owns
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/higher_classification.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/higher_classification.yaml
deleted file mode 100644
index 5f127b079b..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/higher_classification.yaml
+++ /dev/null
@@ -1,34 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/higher_classification
-name: higher_classification_slot
-title: Higher Classification Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  higher_classification:
-    description: 'Full taxonomic hierarchy from kingdom to genus.
-
-
-      **Format**: Pipe-separated: "Kingdom|Phylum|Class|Order|Family|Genus"
-
-      '
-    range: string
-    slot_uri: dwc:higherClassification
-    aliases:
-      - is_or_was_higher_classification
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - dwc:higherClassification
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_description.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_description.yaml
deleted file mode 100644
index 05323eaac2..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_description.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/historic_building_description
-name: historic_building_description_slot
-title: Historic Building Description Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  dcterms: http://purl.org/dc/terms/
-  schema: http://schema.org/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  historic_building_description:
-    description: 'Free-text description of this historic building.
-
-      Maps to dcterms:description for heritage building descriptions.
-
-      Include: - Historical significance - Architectural features - Current use - Relationship to managing custodian'
-    range: string
-    slot_uri: dcterms:description
-    aliases:
-      - is_or_was_historic_building_description
-    close_mappings:
-    - schema:description
-    annotations:
-      custodian_types:
-      - '*'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_id.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_id.yaml
deleted file mode 100644
index 25e0356597..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/historic_building_id.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/historic_building_id
-name: historic_building_id_slot
-title: Historic Building Id Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  dcterms: http://purl.org/dc/terms/
-  schema: http://schema.org/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  historic_building_id:
-    description: 'Unique identifier for this historic building. Mapped to dcterms:identifier as the standard property for resource identifiers.
-
-      Format: URI following NDE Heritage Custodian ontology conventions.
-
-      '
-    range: string # uriorcurie
-    slot_uri: dcterms:identifier
-    aliases:
-      - is_or_was_historic_building_id
-    close_mappings:
-    - schema:identifier
-    annotations:
-      custodian_types:
-      - '*'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/hold.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/hold.yaml
new file mode 100644
index 0000000000..e7a7bb531e
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/hold.yaml
@@ -0,0 +1,121 @@
+# ==============================================================================
+# LinkML Slot Definition: hold
+# ==============================================================================
+# That a heritage institution possesses, maintains custody of, or preserves a
+# particular item or collection as part of its inventory.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                              | File/Line               | Mapping | Notes                              |
+# |---------------|---------------------------------------|-------------------------|---------|------------------------------------|
+# | **Schema.org**| `schema:owns`                         | schemaorg.owl:28732-28760| related | "Things owned by the organization  |
+# |               |                                       |                         |         | or person." Ownership ≠ custody.   |
+# | **CIDOC-CRM** | `crm:P49i_is_former_or_current_keeper_of` | CIDOC_CRM:2410-2435| close   | Inverse: "is former or current     |
+# |               |                                       |                         |         | keeper of." Custody, not ownership.|
+# | **RiC-O**     | `rico:isOrWasHolderOf`                | RiC-O_1-1.rdf:6436-6470 | close   | "has or had holder" (inverse).     |
+# |               |                                       |                         |         | Archives holding relationship.     |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/hold
+name: hold
+title: Hold
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+  rico: https://www.ica.org/standards/RiC/ontology#
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  hold:
+    slot_uri: hc:hold
+    description: >-
+      That a heritage institution possesses, maintains custody of, or preserves
+      a particular item or collection as part of its inventory.
+    alt_descriptions:
+      nl: >-
+        Dat een erfgoedinstelling een bepaald object of een bepaalde collectie
+        bezit, in bewaring heeft of bewaart als onderdeel van haar inventaris.
+      de: >-
+        Dass eine Kulturerbeeinrichtung einen bestimmten Gegenstand oder eine
+        bestimmte Sammlung besitzt, in Obhut hält oder als Teil ihres
+        Inventars bewahrt.
+      fr: >-
+        Qu'une institution patrimoniale possède, conserve sous sa garde ou
+        préserve un objet ou une collection particulière dans le cadre de
+        son inventaire.
+      ar: >-
+        أن مؤسسة تراثية تمتلك أو تحتفظ بحراسة أو تحفظ عنصرًا أو مجموعة
+        معينة كجزء من مقتنياتها.
+      id: >-
+        Bahwa sebuah lembaga warisan budaya memiliki, menjaga, atau melestarikan
+        suatu benda atau koleksi tertentu sebagai bagian dari inventarisnya.
+      zh: >-
+        遗产机构拥有、保管或保存某一特定物品或藏品作为其库存的一部分。
+      es: >-
+        Que una institución patrimonial posee, mantiene en custodia o preserva
+        un objeto o colección particular como parte de su inventario.
+    structured_aliases:
+      - literal_form: Bezit
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Bestand
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Détention
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: حيازة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Kepemilikan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 持有
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Tenencia
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    multivalued: true
+    aliases:
+      - is_or_was_heritage_holding
+    comments:
+      - >-
+        Collection scope examples: corporate records (business documents, board
+        minutes, correspondence), product development (design drawings,
+        prototypes, patents, R&D notebooks), marketing materials
+        (advertisements, brochures, packaging, logos), manufacturing artifacts
+        (machinery, tools, production equipment), photographic collections
+        (corporate photography, product images, facilities), audiovisual
+        materials (commercials, promotional films, oral histories), publications
+        (annual reports, employee newsletters, trade catalogs), brand objects
+        (historic products, packaging samples, promotional items).
+      - >-
+        Heritage holdings reveal collection depth and preservation commitment.
+    examples:
+      - value: >-
+          Brewing equipment (1867-present), Advertising archive, Bottle/label
+          collections, Photography
+      - value: >-
+          Vehicle prototypes, Engineering drawings, Patent documents,
+          Manufacturing records
+      - value: >-
+          Perfume formulas (1920s-present), Bottle designs, Fashion sketches,
+          Advertising campaigns
+      - value: >-
+          Computer hardware (1960s-present), Technical manuals, Software code,
+          Oral histories
+    annotations:
+      custodian_types:
+        - '*'
+    related_mappings:
+      - schema:owns  # schemaorg.owl:28732-28760 — "Things owned by the organization or person." Ownership ≠ custody/holding.
+    close_mappings:
+      - crm:P49i_is_former_or_current_keeper_of  # CIDOC_CRM:2410-2435 — "is former or current keeper of." Custody relationship.
+      - rico:isOrWasHolderOf  # RiC-O_1-1.rdf:6436-6470 — "has or had holder" (inverse). Archives holding.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/hold_authority.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/hold_authority.yaml
index 23bac47073..08073b55d5 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/hold_authority.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/hold_authority.yaml
@@ -1,30 +1,85 @@
-id: https://nde.nl/ontology/hc/slot/governance_authority
-name: governance_authority
+# ==============================================================================
+# LinkML Slot Definition: hold_authority
+# ==============================================================================
+# The possession of official power, right, or legal capacity to give orders,
+# make decisions, and enforce obedience.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# No standard ontology match found for governance/authority power over
+# heritage institutions.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/hold_authority
+name: hold_authority
+title: Hold Authority
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rico: https://www.ica.org/standards/RiC/ontology#
-  rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
-
 imports:
   - linkml:types
-
+default_prefix: hc
 slots:
-  governance_authority:
-    slot_uri: schema:parentOrganization
-    description: 'Nature and extent of governance authority this body exercises over members.
-
-
-      **UmbrellaOrganisation**: Strong authority (sets policy, approves budgets, appoints directors)
-
-      **NetworkOrganisation**: Service authority (defines service standards, coordinates activities)
-
-      **Consortium**: Coordination authority (facilitates collaboration, no direct control)
-
-      '
+  hold_authority:
+    slot_uri: hc:holdAuthority
+    description: >-
+      The possession of official power, right, or legal capacity to give
+      orders, make decisions, and enforce obedience.
+    alt_descriptions:
+      nl: >-
+        Het bezit van officiële macht, recht of juridische bevoegdheid om
+        bevelen te geven, beslissingen te nemen en gehoorzaamheid af te dwingen.
+      de: >-
+        Der Besitz offizieller Macht, eines Rechts oder einer
+        Rechtsbefähigung, Befehle zu erteilen, Entscheidungen zu treffen
+        und Gehorsam durchzusetzen.
+      fr: >-
+        La possession du pouvoir officiel, du droit ou de la capacité
+        juridique de donner des ordres, de prendre des décisions et
+        d'imposer l'obéissance.
+      ar: >-
+        امتلاك السلطة الرسمية أو الحق أو الأهلية القانونية لإصدار الأوامر
+        واتخاذ القرارات وفرض الطاعة.
+      id: >-
+        Kepemilikan kekuasaan resmi, hak, atau kapasitas hukum untuk
+        memberikan perintah, mengambil keputusan, dan menegakkan kepatuhan.
+      zh: >-
+        拥有发布命令、做出决策和强制服从的官方权力、权利或法律能力。
+      es: >-
+        La posesión de poder oficial, derecho o capacidad legal para dar
+        órdenes, tomar decisiones e imponer obediencia.
+    structured_aliases:
+      - literal_form: Autoriteit
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Autorität
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Autorité
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: سلطة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Otoritas
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 权威
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Autoridad
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     aliases:
       - is_or_was_governance_authority
     required: false
+    comments:
+      - >-
+        Authority levels by organisation type: UmbrellaOrganisation has strong
+        authority (sets policy, approves budgets, appoints directors);
+        NetworkOrganisation has service authority (defines service standards,
+        coordinates activities); Consortium has coordination authority
+        (facilitates collaboration, no direct control).
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/identified_as.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_as.yaml
new file mode 100644
index 0000000000..2dfa558a9c
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_as.yaml
@@ -0,0 +1,138 @@
+# ==============================================================================
+# LinkML Slot Definition: identified_as
+# ==============================================================================
+# The etic classification, categorization, or identification assigned to an
+# entity by external observers, researchers, institutions, or classification
+# systems.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                       | File/Line               | Mapping | Notes                              |
+# |---------------|--------------------------------|-------------------------|---------|------------------------------------|
+# | **CIDOC-CRM** | `crm:P41i_was_classified_by`   | CIDOC_CRM:2199-2211     | related | "was classified by." Inverse of    |
+# |               |                                |                         |         | P41_classified. About the           |
+# |               |                                |                         |         | classification event, not result.   |
+# | **CIDOC-CRM** | `crm:P2_has_type`              | CIDOC_CRM:1200-1214     | broad   | Generic typing property. Broader    |
+# |               |                                |                         |         | than etic identification.           |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/identified_as
+name: identified_as
+title: Identified As
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  crm: http://www.cidoc-crm.org/cidoc-crm/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  identified_as:
+    slot_uri: hc:identifiedAs
+    description: >-
+      The etic classification, categorization, or identification assigned to
+      an entity by external observers, researchers, institutions, or
+      classification systems, representing an outsider's analytical perspective
+      rather than the entity's self-identification.
+    alt_descriptions:
+      nl: >-
+        De etische classificatie, categorisering of identificatie die aan een
+        entiteit wordt toegekend door externe waarnemers, onderzoekers,
+        instellingen of classificatiesystemen, vanuit het analytische
+        perspectief van een buitenstaander in plaats van de zelfidentificatie
+        van de entiteit.
+      de: >-
+        Die etische Klassifikation, Kategorisierung oder Identifikation, die
+        einer Entität durch externe Beobachter, Forscher, Institutionen oder
+        Klassifikationssysteme zugewiesen wird und eine analytische
+        Außenperspektive statt der Selbstidentifikation der Entität darstellt.
+      fr: >-
+        La classification, la catégorisation ou l'identification étique
+        attribuée à une entité par des observateurs externes, des chercheurs,
+        des institutions ou des systèmes de classification, représentant une
+        perspective analytique extérieure plutôt que l'auto-identification
+        de l'entité.
+      ar: >-
+        التصنيف أو التقسيم أو التعريف الإيتي المُسند إلى كيان من قبل
+        مراقبين خارجيين أو باحثين أو مؤسسات أو أنظمة تصنيف، يمثل المنظور
+        التحليلي للمراقب الخارجي بدلاً من التعريف الذاتي للكيان.
+      id: >-
+        Klasifikasi, kategorisasi, atau identifikasi etik yang diberikan kepada
+        suatu entitas oleh pengamat eksternal, peneliti, institusi, atau sistem
+        klasifikasi, yang mewakili perspektif analitis dari luar bukan
+        identifikasi diri entitas tersebut.
+      zh: >-
+        由外部观察者、研究人员、机构或分类系统赋予实体的客位分类、归类或识别，
+        代表外部分析视角而非实体的自我认同。
+      es: >-
+        La clasificación, categorización o identificación ética asignada a una
+        entidad por observadores externos, investigadores, instituciones o
+        sistemas de clasificación, que representa una perspectiva analítica
+        externa en lugar de la autoidentificación de la entidad.
+    structured_aliases:
+      - literal_form: Externe Identificatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Externe Identifikation
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Identification Externe
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تعريف خارجي
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Identifikasi Eksternal
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 外部识别
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Identificación Externa
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    related_mappings:
+      - crm:P41i_was_classified_by  # CIDOC_CRM:2199-2211 — "was classified by." About the classification event, not the classification result.
+    broad_mappings:
+      - crm:P2_has_type  # CIDOC_CRM:1200-1214 — Generic typing property. Broader than etic identification specifically.
+    comments:
+      - >-
+        ETIC PERSPECTIVE: This slot captures how an entity is classified from
+        the outside — by researchers, institutions, or classification systems.
+        This contrasts with identify_as, which captures emic (insider)
+        self-identification.
+      - >-
+        EMIC VS ETIC: This is a standard anthropological/social science
+        distinction. Emic = insider perspective (self-identification); Etic =
+        outsider perspective (observer classification). Both are valid and
+        important in heritage contexts.
+      - >-
+        GLAM EXAMPLES: A community self-identifies as "indigenous peoples of
+        the Pacific Northwest" (emic/identify_as), while researchers classify
+        them as "Coast Salish cultural group" (etic/identified_as). An
+        institution self-describes as a "community archive" (emic/identify_as),
+        while a classification system identifies it as a "special collections
+        repository" (etic/identified_as).
+      - >-
+        POWER DYNAMICS: Etic classifications may reflect power imbalances.
+        Heritage practitioners should be aware that externally imposed
+        categories may not align with how communities or entities see
+        themselves.
+    examples:
+      - value: Coast Salish cultural group
+        description: Researcher classification of an indigenous community
+      - value: special collections repository
+        description: Institutional classification by a library system
+      - value: Intangible Cultural Heritage
+        description: UNESCO classification of cultural practices
+      - value: non-governmental organisation
+        description: Legal/administrative classification
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: Applicable to all heritage custodian types.
+      custodian_types_primary: M
+      specificity_score: 0.7
+      specificity_rationale: Etic identification assigned by external observers.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/identified_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_by.yaml
index c35a014e83..c9880cf109 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/identified_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_by.yaml
@@ -36,13 +36,6 @@ prefixes:
 imports:
 - linkml:types
 default_prefix: hc
-description: |
-  To be recognized or established as a particular entity based on specific 
-  distinguishing designators or symbols.
-  
-  This slot captures identifiers in the general sense - strings, codes, URIs,
-  or other tokens that uniquely or semi-uniquely reference an entity within
-  some context or system.
 slots:
   identified_by:
     slot_uri: crm:P1_is_identified_by
@@ -155,6 +148,8 @@ slots:
       - is_or_was_identified_by
       - track_id
       - is_or_was_track_id
+      - is_or_was_historic_building_id
+      - historic_building_id
     annotations:
       custodian_types: '["*"]'
     
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/identified_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_through.yaml
index 4f3f6eb8aa..8f0652a0cf 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/identified_through.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/identified_through.yaml
@@ -1,21 +1,86 @@
+# ==============================================================================
+# LinkML Slot Definition: identified_through
+# ==============================================================================
+# Attribute, mechanism, or evidence used to establish an entity's identity.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **DCTerms**   | `dcterms:identifier`  | dcterms.rdf:1395-1415    | related | "An unambiguous reference to the resource within a given context." Range:   |
+# |               |                       |                          |         | Literal. The identifier is the value/string itself; this slot is about the  |
+# |               |                       |                          |         | mechanism or attribute used to identify, not the identifier value.          |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/identified_through
 name: identified_through
-title: identified_through
+title: Identified Through
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
+  dcterms: http://purl.org/dc/terms/
 default_prefix: hc
 imports:
 - linkml:types
 slots:
   identified_through:
-    name: identified_through
-    title: identified_through
-    description: Method or process through which the entity was identified.
     slot_uri: hc:identifiedThrough
-    range: string # uriorcurie
+    description: >-
+      Specifies the attribute, mechanism, or evidence used to recognize,
+      distinguish, or establish the unique identity of an entity.
+    alt_descriptions:
+      nl: >-
+        Specificeert het kenmerk, mechanisme of bewijs dat wordt gebruikt
+        om de unieke identiteit van een entiteit te herkennen, te
+        onderscheiden of vast te stellen.
+      de: >-
+        Gibt das Attribut, den Mechanismus oder den Nachweis an, der
+        verwendet wird, um die eindeutige Identitat einer Entitat zu
+        erkennen, zu unterscheiden oder festzustellen.
+      fr: >-
+        Specifie l'attribut, le mecanisme ou la preuve utilise pour
+        reconnaitre, distinguer ou etablir l'identite unique d'une entite.
+      ar: >-
+        يحدد السمة أو الآلية أو الدليل المستخدم للتعرف على الهوية الفريدة
+        لكيان ما أو تمييزها أو إثباتها.
+      id: >-
+        Menentukan atribut, mekanisme, atau bukti yang digunakan untuk
+        mengenali, membedakan, atau menetapkan identitas unik suatu
+        entitas.
+      zh: >-
+        指定用于识别、区分或确立实体唯一身份的属性、机制或证据。
+      es: >-
+        Especifica el atributo, mecanismo o evidencia utilizado para
+        reconocer, distinguir o establecer la identidad unica de una
+        entidad.
+    structured_aliases:
+      - literal_form: Identificatiemiddel
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Identifikationsmittel
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Moyen d'identification
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: وسيلة تعريف
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Sarana identifikasi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 识别手段
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Medio de identificacion
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
     aliases:
       - is_or_was_identified_through
+    related_mappings:
+      - dcterms:identifier  # dcterms.rdf:1395-1415 - "An unambiguous reference to the resource within a given context." The identifier value, not the mechanism.
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/identify_as.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/identify_as.yaml
index fc1b79fba0..99ee67fda9 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/identify_as.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/identify_as.yaml
@@ -1,17 +1,22 @@
 # ==============================================================================
 # LinkML Slot Definition: identify_as
 # ==============================================================================
-# Pronoun preferences or identity classification for a person.
+# The emic perspective of a person, group, or entity, representing the
+# internal self-definition or classification meaningful to the subject itself.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
 # | Ontology      | Property              | File/Line               | Mapping | Notes                              |
 # |---------------|-----------------------|-------------------------|---------|------------------------------------|
-# | **Schema.org**| `schema:pronouns`     | schemaorg.owl:31391-31396| exact   | "A short string listing or         |
+# | **Schema.org**| `schema:pronouns`     | schemaorg.owl:31391-31396| narrow  | "A short string listing or         |
 # |               |                       |                         |         | describing pronouns for a person." |
-# | **FOAF**      | `foaf:name`           | foaf.ttl                | related | Name (broader context)             |
+# |               |                       |                         |         | Pronouns are one specific form of  |
+# |               |                       |                         |         | emic self-identification.          |
 #
 # CREATED: 2026-02-04
+# UPDATED: 2026-02-08 — Broadened from pronouns to emic self-identification;
+#   synced alt_descriptions; demoted schema:pronouns exact→narrow; removed
+#   foaf:name related mapping; capitalized structured_aliases; cleaned prefixes.
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/identify_as
@@ -21,94 +26,96 @@ prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
   foaf: http://xmlns.com/foaf/0.1/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
   - linkml:types
 slots:
   identify_as:
-    slot_uri: schema:pronouns
+    slot_uri: hc:identifyAs
     description: >-
-      Pronoun preferences or identity classification indicating how a person
-      wishes to be referred to.
+      The emic perspective of a person, group, or entity, representing the
+      internal self-definition or classification that is meaningful to the
+      subject itself.
     alt_descriptions:
       nl: >-
-        Voornaamwoordvoorkeuren of identiteitsclassificatie die aangeeft hoe
-        een persoon aangesproken wenst te worden.
+        Het emische perspectief van een persoon, groep of entiteit, dat de
+        interne zelfdefinitie of classificatie vertegenwoordigt die voor het
+        subject zelf betekenisvol is.
       de: >-
-        Pronomen-Präferenzen oder Identitätsklassifizierung, die angibt, wie
-        eine Person angesprochen werden möchte.
+        Die emische Perspektive einer Person, Gruppe oder Entität, die die
+        interne Selbstdefinition oder Klassifikation darstellt, die für das
+        Subjekt selbst bedeutsam ist.
       fr: >-
-        Préférences de pronoms ou classification d'identité indiquant comment
-        une personne souhaite être désignée.
+        La perspective émique d'une personne, d'un groupe ou d'une entité,
+        représentant l'auto-définition ou la classification interne qui est
+        significative pour le sujet lui-même.
       ar: >-
-        تفضيلات الضمائر أو تصنيف الهوية الذي يشير إلى الطريقة التي يرغب
-        الشخص أن يُشار إليه بها.
+        المنظور الإيمي لشخص أو مجموعة أو كيان، يمثل التعريف الذاتي الداخلي
+        أو التصنيف الذي يكون ذا معنى للموضوع نفسه.
       id: >-
-        Preferensi kata ganti atau klasifikasi identitas yang menunjukkan
-        bagaimana seseorang ingin disebut.
+        Perspektif emik dari seseorang, kelompok, atau entitas, yang mewakili
+        definisi diri atau klasifikasi internal yang bermakna bagi subjek itu
+        sendiri.
       zh: >-
-        代词偏好或身份分类，表明一个人希望如何被称呼。
+        个人、群体或实体的主位视角，代表对主体自身有意义的内部自我定义或分类。
       es: >-
-        Preferencias de pronombres o clasificación de identidad que indica
-        cómo desea ser referida una persona.
+        La perspectiva émica de una persona, grupo o entidad, que representa
+        la autodefinición o clasificación interna que es significativa para
+        el propio sujeto.
     structured_aliases:
-      - literal_form: identificeert als
+      - literal_form: Zelfidentificatie
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: identifiziert als
+      - literal_form: Selbstidentifikation
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: s'identifie comme
+      - literal_form: Auto-identification
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: يُعرَّف بـ
+      - literal_form: تعريف ذاتي
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: mengidentifikasi sebagai
+      - literal_form: Identifikasi Diri
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 自我认同为
+      - literal_form: 自我认同
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: se identifica como
+      - literal_form: Autoidentificación
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
-    exact_mappings:
-      - schema:pronouns  # schemaorg.owl:31391-31396
-    related_mappings:
-      - foaf:name
+    narrow_mappings:
+      - schema:pronouns  # schemaorg.owl:31391-31396 — "A short string listing or describing pronouns for a person." Pronouns are one specific form of emic self-identification.
     aliases:
       - is_or_was_pronoun
     comments:
-      - |
-        **SELF-AUTHORITY**: As Schema.org notes, "the person concerned is the
-        best authority as pronouns are a critical part of personal identity
-        and expression."
-      - |
-        **FORMAT**: May be formatted as the person prefers, e.g., "she/her",
-        "they/them", "he/him", "ze/zir", "any pronouns", etc.
-      - |
-        **NEOPRONOUNS**: Fully supported - use as specified by the person
-        (e.g., "xe/xem", "fae/faer", "ey/em").
-      - |
-        **LINGUISTIC DIVERSITY**: Many languages use gender-neutral pronouns
-        by default (e.g., Malay/Indonesian "dia", Finnish "hän", Turkish "o",
-        Hungarian "ő", Persian "او"). In these languages, pronouns do NOT
+      - >-
+        EMIC PERSPECTIVE: This slot captures how an entity defines itself from
+        the inside — the subject is the authority on their own identity. This
+        contrasts with identified_as, which captures etic (outsider)
+        classification.
+      - >-
+        SELF-AUTHORITY: As Schema.org notes for pronouns, "the person concerned
+        is the best authority as pronouns are a critical part of personal
+        identity and expression."
+      - >-
+        SCOPE: Emic self-identification encompasses pronoun preferences (e.g.,
+        she/her, they/them, ze/zir), cultural identity (e.g., "indigenous
+        peoples of the Pacific Northwest"), institutional self-description
+        (e.g., "community archive"), religious or spiritual identity, and any
+        other form of self-classification.
+      - >-
+        LINGUISTIC DIVERSITY: Many languages use gender-neutral pronouns by
+        default (e.g., Malay/Indonesian "dia", Finnish "hän", Turkish "o",
+        Hungarian "ő", Persian "او"). In these languages, pronouns do not
         indicate gender identity.
-      - |
-        **HISTORICAL RECORDS**: Historical sources may not have "pronoun
-        preferences" as a concept. Leave empty rather than assuming.
-      - |
-        **PRIVACY**: This field may be left empty by choice.
+      - >-
+        HISTORICAL RECORDS: Historical sources may not have self-identification
+        as a concept. Leave empty rather than assuming.
+      - >-
+        PRIVACY: This field may be left empty by choice.
     examples:
       - value: she/her
         description: Feminine pronouns (English)
@@ -118,11 +125,13 @@ slots:
         description: Neopronoun set (English)
       - value: dia
         description: Gender-neutral by default (Malay/Indonesian)
-      - value: hän
-        description: Gender-neutral by default (Finnish)
+      - value: indigenous peoples of the Pacific Northwest
+        description: Cultural self-identification of a community
+      - value: community archive
+        description: Institutional self-description
     annotations:
       custodian_types: '["*"]'
       custodian_types_rationale: Applicable to all heritage custodian types.
       custodian_types_primary: M
       specificity_score: 0.7
-      specificity_rationale: Personal identity slot for pronoun preferences.
+      specificity_rationale: Emic self-identification for persons, groups, or entities.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/implemented_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/implemented_by.yaml
index 253eff31c7..f6a1c40309 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/implemented_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/implemented_by.yaml
@@ -1,22 +1,93 @@
+# ==============================================================================
+# LinkML Slot Definition: implemented_by
+# ==============================================================================
+# The agent, software component, or entity responsible for realizing a
+# specification, executing a plan, or enforcing a mandate.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                    | File/Line          | Mapping | Notes                              |
+# |---------------|-----------------------------|--------------------|---------|------------------------------------|
+# | **PROV-O**    | `prov:wasAssociatedWith`    | prov.ttl:1066-1080 | related | "An Agent that had some            |
+# |               |                             |                    |         | responsibility for the occurrence  |
+# |               |                             |                    |         | of this Activity." General agent   |
+# |               |                             |                    |         | responsibility, not implementation.|
+# | **CIDOC-CRM** | `crm:P14i_performed`        | CIDOC_CRM:1505-1510| related | "performed." Carrying out an       |
+# |               |                             |                    |         | activity. Broader than implementing|
+# |               |                             |                    |         | a specification.                   |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/implemented_by
 name: implemented_by
-title: implemented_by
+title: Implemented By
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   prov: http://www.w3.org/ns/prov#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
+  crm: http://www.cidoc-crm.org/cidoc-crm/
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   implemented_by:
-    name: implemented_by
-    title: implemented_by
-    description: Agent or system that implemented the entity.
     slot_uri: hc:implementedBy
-    range: string # uriorcurie
+    description: >-
+      The agent, software component, or entity responsible for realizing a
+      specification, executing a plan, or enforcing a mandate.
+    alt_descriptions:
+      nl: >-
+        De agent, softwarecomponent of entiteit die verantwoordelijk is voor
+        het realiseren van een specificatie, het uitvoeren van een plan of het
+        handhaven van een mandaat.
+      de: >-
+        Der Agent, die Softwarekomponente oder Entität, die für die
+        Verwirklichung einer Spezifikation, die Ausführung eines Plans oder
+        die Durchsetzung eines Mandats verantwortlich ist.
+      fr: >-
+        L'agent, le composant logiciel ou l'entité responsable de la
+        réalisation d'une spécification, de l'exécution d'un plan ou de
+        l'application d'un mandat.
+      ar: >-
+        العامل أو مكون البرنامج أو الكيان المسؤول عن تحقيق مواصفة أو تنفيذ
+        خطة أو إنفاذ تفويض.
+      id: >-
+        Agen, komponen perangkat lunak, atau entitas yang bertanggung jawab
+        untuk mewujudkan spesifikasi, melaksanakan rencana, atau menegakkan
+        mandat.
+      zh: >-
+        负责实现规范、执行计划或执行授权的代理、软件组件或实体。
+      es: >-
+        El agente, componente de software o entidad responsable de realizar
+        una especificación, ejecutar un plan o hacer cumplir un mandato.
+    structured_aliases:
+      - literal_form: Implementatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Implementierung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Implémentation
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تنفيذ
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Implementasi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 实施
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Implementación
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
     aliases:
       - is_or_was_implemented_by
+    related_mappings:
+      - prov:wasAssociatedWith  # prov.ttl:1066-1080 — "An Agent that had some responsibility for the occurrence of this Activity." General agent responsibility, not specifically implementation.
+      - crm:P14i_performed  # CIDOC_CRM:1505-1510 — "performed." Carrying out an activity. Broader than implementing a specification.
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/in_period.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/in_period.yaml
index d492d1e6dd..6359a94a51 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/in_period.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/in_period.yaml
@@ -1,7 +1,8 @@
 # ==============================================================================
-# LinkML Slot Definition: has_period
+# LinkML Slot Definition: in_period
 # ==============================================================================
-# Named periods within coverage (uses TemporalPeriod class).
+# The defined timeframe, duration, or era within which an event occurs, an
+# entity exists, or a validity constraint applies.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
@@ -11,14 +12,16 @@
 # |          |                    |                       |         | Range: PeriodOfTime. Broader than named periods.   |
 #
 # dcterms:temporal is close: it covers all temporal characteristics of a resource.
-# This slot is narrower: specifically named periods within a coverage context.
+# This slot is narrower: specifically a defined timeframe or era.
 #
 # CREATED: 2026-02-07
+# UPDATED: 2026-02-08 — Synced alt_descriptions to current English description;
+#   capitalized structured_aliases; updated header one-liner.
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_period
-name: has_period
-title: has_period
+id: https://nde.nl/ontology/hc/slot/in_period
+name: in_period
+title: In Period
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -27,26 +30,36 @@ imports:
   - linkml:types
 default_prefix: hc
 slots:
-  has_period:
-    name: has_period
-    slot_uri: hc:hasPeriod
+  in_period:
+    slot_uri: hc:inPeriod
     description: >-
-      Named periods within coverage (uses TemporalPeriod class).
+      The defined timeframe, duration, or era within which an event occurs,
+      an entity exists, or a validity constraint applies.
     alt_descriptions:
       nl: >-
-        Benoemde perioden binnen het dekkingsgebied (gebruikt de klasse TemporalPeriod).
+        Het vastgestelde tijdsbestek, de duur of het tijdperk waarbinnen een
+        gebeurtenis plaatsvindt, een entiteit bestaat of een
+        geldigheidsbeperking van toepassing is.
       de: >-
-        Benannte Perioden innerhalb der Abdeckung (verwendet die Klasse TemporalPeriod).
+        Der festgelegte Zeitrahmen, die Dauer oder die Ära, innerhalb derer
+        ein Ereignis stattfindet, eine Entität existiert oder eine
+        Gültigkeitsbeschränkung gilt.
       fr: >-
-        Périodes nommées dans la couverture (utilise la classe TemporalPeriod).
+        La période définie, la durée ou l'ère au cours de laquelle un
+        événement se produit, une entité existe ou une contrainte de
+        validité s'applique.
       ar: >-
-        فترات مسماة ضمن التغطية (تستخدم فئة TemporalPeriod).
+        الإطار الزمني المحدد أو المدة أو الحقبة التي يقع فيها حدث أو يوجد
+        فيها كيان أو ينطبق فيها قيد صلاحية.
       id: >-
-        Periode bernama dalam cakupan (menggunakan kelas TemporalPeriod).
+        Jangka waktu, durasi, atau era yang ditentukan di mana suatu peristiwa
+        terjadi, suatu entitas ada, atau batasan validitas berlaku.
       zh: >-
-        覆盖范围内的命名时期（使用 TemporalPeriod 类）。
+        事件发生、实体存在或有效性约束适用的指定时间范围、持续时间或时代。
       es: >-
-        Períodos nombrados dentro de la cobertura (usa la clase TemporalPeriod).
+        El marco temporal definido, la duración o la era dentro de la cual
+        ocurre un evento, existe una entidad o se aplica una restricción
+        de validez.
     structured_aliases:
       - literal_form: Periode
         predicate: EXACT_SYNONYM
@@ -76,6 +89,6 @@ slots:
     annotations:
       custodian_types: '["*"]'
     close_mappings:
-      - dcterms:temporal  # dcterms.rdf:2010-2033 - "Temporal characteristics of the resource"
+      - dcterms:temporal  # dcterms.rdf:2010-2033 — "Temporal characteristics of the resource." Broader than a specific defined timeframe.
     comments:
       - "MIGRATED 2026-02-03 from has_or_had_period for conciseness."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/in_place.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/in_place.yaml
index 405c22490d..a320f18c8f 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/in_place.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/in_place.yaml
@@ -1,20 +1,26 @@
 # ==============================================================================
-# LinkML Slot Definition: has_place
+# LinkML Slot Definition: in_place
 # ==============================================================================
-# Place associated with an entity.
+# The geographic location, region, or physical setting where an entity exists,
+# an event occurs, or an object is situated.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
 # | Ontology      | Property              | File/Line                | Mapping | Notes                                       |
 # |---------------|-----------------------|--------------------------|---------|---------------------------------------------|
 # | **Schema.org**| `schema:location`     | schemaorg.owl:25018-25046| close   | Domain: Event/InteractionCounter/Org/Action. |
+# |               |                       |                          |         | "The location of, for example, where an     |
+# |               |                       |                          |         | event is happening, where an organization   |
+# |               |                       |                          |         | is located, or where an action takes place."|
 #
 # CREATED: 2026-02-07
+# UPDATED: 2026-02-08 — Synced alt_descriptions to current English description;
+#   capitalized structured_aliases to noun forms; updated header one-liner.
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_place
-name: has_place
-title: Has Place
+id: https://nde.nl/ontology/hc/slot/in_place
+name: in_place
+title: In Place
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -23,54 +29,53 @@ imports:
   - linkml:types
 default_prefix: hc
 slots:
-  has_place:
-    slot_uri: hc:hasPlace
+  in_place:
+    slot_uri: hc:inPlace
     description: >-
-      Place associated with an entity, identifying a geographic location, site,
-      or named area relevant to the described resource or activity.
+      The geographic location, region, or physical setting where an entity
+      exists, an event occurs, or an object is situated.
     alt_descriptions:
       nl: >-
-        Plaats geassocieerd met een entiteit, die een geografische locatie, terrein
-        of benoemd gebied aanduidt dat relevant is voor de beschreven bron of activiteit.
+        De geografische locatie, regio of fysieke omgeving waar een entiteit
+        bestaat, een gebeurtenis plaatsvindt of een object zich bevindt.
       de: >-
-        Ort, der mit einer Entität verbunden ist und einen geografischen Standort,
-        ein Gelände oder ein benanntes Gebiet identifiziert, das für die beschriebene
-        Ressource oder Aktivität relevant ist.
+        Der geografische Standort, die Region oder die physische Umgebung, in
+        der eine Entität existiert, ein Ereignis stattfindet oder ein Objekt
+        sich befindet.
       fr: >-
-        Lieu associé à une entité, identifiant un emplacement géographique, un site
-        ou une zone nommée pertinente pour la ressource ou l'activité décrite.
+        L'emplacement géographique, la région ou le cadre physique où une
+        entité existe, un événement se produit ou un objet est situé.
       ar: >-
-        مكان مرتبط بكيان، يحدد موقعاً جغرافياً أو موقعاً أو منطقة مسماة ذات صلة
-        بالمورد أو النشاط الموصوف.
+        الموقع الجغرافي أو المنطقة أو البيئة المادية التي يوجد فيها كيان أو
+        يقع فيها حدث أو يتواجد فيها كائن.
       id: >-
-        Tempat yang terkait dengan suatu entitas, mengidentifikasi lokasi geografis,
-        situs, atau area bernama yang relevan dengan sumber daya atau aktivitas
-        yang dideskripsikan.
+        Lokasi geografis, wilayah, atau lingkungan fisik tempat suatu entitas
+        berada, suatu peristiwa terjadi, atau suatu objek terletak.
       zh: >-
-        与实体关联的地点，标识与所描述资源或活动相关的地理位置、场所或命名区域。
+        实体存在、事件发生或物体所在的地理位置、区域或物理环境。
       es: >-
-        Lugar asociado con una entidad, que identifica una ubicación geográfica, sitio
-        o área nombrada relevante para el recurso o actividad descritos.
+        La ubicación geográfica, región o entorno físico donde existe una
+        entidad, ocurre un evento o se sitúa un objeto.
     structured_aliases:
-      - literal_form: heeft plaats
+      - literal_form: Plaats
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: hat Ort
+      - literal_form: Ort
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: a un lieu
+      - literal_form: Lieu
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: لديه مكان
+      - literal_form: مكان
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: memiliki tempat
+      - literal_form: Tempat
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 拥有地点
+      - literal_form: 地点
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: tiene lugar
+      - literal_form: Lugar
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
@@ -78,7 +83,7 @@ slots:
     aliases:
       - has_or_had_place
     close_mappings:
-      - schema:location  # schemaorg.owl:25018-25046 - "The location of, for example, where an event is happening, where an organization is located, or where an action takes place." Domain: Event/InteractionCounter/Organization/Action.
+      - schema:location  # schemaorg.owl:25018-25046 — "The location of, for example, where an event is happening, where an organization is located, or where an action takes place." Domain: Event/InteractionCounter/Organization/Action.
     annotations:
       custodian_types:
         - '*'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/in_script.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/in_script.yaml
index 8fdc9ddbc6..2ab8e51781 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/in_script.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/in_script.yaml
@@ -1,105 +1,109 @@
 # ==============================================================================
 # LinkML Slot Definition: in_script
 # ==============================================================================
-# Writing system or character set used for composing or rendering content.
+# Composed or rendered using a specific system of handwriting or distinct
+# character set.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
-# | Ontology       | Property              | File/Line           | Mapping  | Notes                                    |
-# |----------------|-----------------------|---------------------|----------|------------------------------------------|
-# | **Schema.org** | `schema:inLanguage`   | schemaorg.owl:21591 | close    | "The language of the content or          |
-# |                |                       |                     |          | performance." Note: language ≠ script    |
-# |                |                       |                     |          | but closely related.                     |
-# | **CIDOC-CRM**  | `crm:P72_has_language`| CIDOC_CRM:2839-2852 | related  | "Associates E33 Linguistic Object with   |
-# |                |                       |                     |          | E56 Language." Language context.         |
-# | **RiC-O**      | `rico:hasOrHadLanguage`| RiC-O:6716-6761    | related  | "Connects Agent, Record or Record Part   |
-# |                |                       |                     |          | to a Language." Language ≠ script, but   |
-# |                |                       |                     |          | "written language" concept overlaps.     |
+# | Ontology       | Property              | File/Line               | Mapping  | Notes                                    |
+# |----------------|-----------------------|-------------------------|----------|------------------------------------------|
+# | **Schema.org** | `schema:inLanguage`   | schemaorg.owl:21591-21618| close    | "The language of the content or          |
+# |                |                       |                         |          | performance." Language ≠ script but      |
+# |                |                       |                         |          | closely related concepts.                |
+# | **CIDOC-CRM**  | `crm:P72_has_language` | CIDOC_CRM:2839-2852    | related  | "Associates E33 Linguistic Object with   |
+# |                |                       |                         |          | E56 Language." Language context.         |
+# | **RiC-O**      | `rico:hasOrHadLanguage`| RiC-O_1-1.rdf:6716-6761| related  | "Connects Agent, Record or Record Part   |
+# |                |                       |                         |          | to a Language." Language ≠ script, but   |
+# |                |                       |                         |          | "written language" concept overlaps.     |
 #
 # DISTINCTION FROM LANGUAGE:
 # Script refers to the writing system (Latin, Cyrillic, Arabic, Han, etc.)
-# while language refers to the linguistic content (English, Russian, Arabic, etc.).
-# A single language may use multiple scripts (e.g., Serbian: Cyrillic and Latin)
-# and a single script may be used for multiple languages (e.g., Latin: English,
-# French, German, etc.).
+# while language refers to the linguistic content (English, Russian, Arabic,
+# etc.). A single language may use multiple scripts (e.g., Serbian: Cyrillic
+# and Latin) and a single script may be used for multiple languages (e.g.,
+# Latin: English, French, German, etc.).
 #
 # ISO 15924 provides standard codes for scripts (Latn, Cyrl, Arab, Hans, etc.)
 #
 # CREATED: 2026-01-26
-# UPDATED: 2026-02-02 - Added multilingual support, verified ontology mappings
+# UPDATED: 2026-02-02 — Added multilingual support, verified ontology mappings.
+# UPDATED: 2026-02-08 — Fixed slot_uri to camelCase; capitalized
+#   structured_aliases; removed duplicate alias without in_language; removed
+#   ontology table from comments (already in header).
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/in_script
 name: in_script
-title: in script
-
+title: In Script
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
   crm: http://www.cidoc-crm.org/cidoc-crm/
   rico: https://www.ica.org/standards/RiC/ontology#
-
 imports:
   - linkml:types
-
 default_prefix: hc
-
 slots:
   in_script:
-    slot_uri: hc:in_script
+    slot_uri: hc:inScript
     description: >-
-      To be composed or rendered using a specific system of handwriting or distinct character set.
+      To be composed or rendered using a specific system of handwriting or
+      distinct character set.
     alt_descriptions:
       nl: >-
-        Samengesteld of weergegeven zijn met behulp van een specifiek schriftsysteem of onderscheidende tekenset.
+        Samengesteld of weergegeven met behulp van een specifiek schriftsysteem
+        of onderscheidende tekenset.
       de: >-
-        Mit einem bestimmten Schriftsystem oder einem eigenen Zeichensatz verfasst oder dargestellt werden.
+        Mit einem bestimmten Schriftsystem oder einem eigenen Zeichensatz
+        verfasst oder dargestellt.
       fr: >-
-        Être composé ou rendu en utilisant un système d'écriture spécifique ou un jeu de caractères distinct.
+        Composé ou rendu en utilisant un système d'écriture spécifique ou un
+        jeu de caractères distinct.
       ar: >-
-        أن يكون مؤلفاً أو معروضاً باستخدام نظام كتابة محدد أو مجموعة أحرف مميزة.
+        مؤلف أو معروض باستخدام نظام كتابة محدد أو مجموعة أحرف مميزة.
       id: >-
-        Disusun atau dirender menggunakan sistem tulisan tertentu atau rangkaian karakter yang berbeda.
+        Disusun atau dirender menggunakan sistem tulisan tertentu atau
+        rangkaian karakter yang berbeda.
       zh: >-
         使用特定的书写系统或独特的字符集编写或呈现。
       es: >-
-        Estar compuesto o representado utilizando un sistema de escritura específico o conjunto de caracteres distinto.
+        Compuesto o representado utilizando un sistema de escritura específico
+        o conjunto de caracteres distinto.
+    structured_aliases:
+      - literal_form: Schrift
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Schrift
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Écriture
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: خط
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Aksara
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 文字
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Escritura
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     inlined: false
     close_mappings:
-      - schema:inLanguage
+      - schema:inLanguage  # schemaorg.owl:21591-21618 — "The language of the content or performance." Language ≠ script but closely related.
     related_mappings:
-      - crm:P72_has_language
-      - rico:hasOrHadLanguage
+      - crm:P72_has_language  # CIDOC_CRM:2839-2852 — "Associates E33 Linguistic Object with E56 Language."
+      - rico:hasOrHadLanguage  # RiC-O_1-1.rdf:6716-6761 — "Connects Agent, Record or Record Part to a Language."
     aliases:
       - has_or_had_writing_system
       - is_or_was_in_script
-    structured_aliases:
-      - literal_form: in schrift
-        predicate: EXACT_SYNONYM
-      - literal_form: is_or_was_in_script
-        predicate: EXACT_SYNONYM
-        in_language: nl
-      - literal_form: in Schrift
-        predicate: EXACT_SYNONYM
-        in_language: de
-      - literal_form: en écriture
-        predicate: EXACT_SYNONYM
-        in_language: fr
-      - literal_form: بالخط
-        predicate: EXACT_SYNONYM
-        in_language: ar
-      - literal_form: dalam aksara
-        predicate: EXACT_SYNONYM
-        in_language: id
-      - literal_form: 以文字
-        predicate: EXACT_SYNONYM
-        in_language: zh
-      - literal_form: en escritura
-        predicate: EXACT_SYNONYM
-        in_language: es
     examples:
       - value: |
           script_code: Latn
@@ -120,26 +124,16 @@ slots:
     annotations:
       custodian_types: '["*"]'
     comments:
-      - |
-        **USAGE**:
-        Used for:
-        - Script type (Latin, Cyrillic, Arabic, etc.)
-        - Writing direction (LTR, RTL)
-        - Historical scripts (Cuneiform, Hieroglyphics)
-      - |
-        **ISO 15924**: Standard codes for scripts
-        - Latn (Latin), Cyrl (Cyrillic), Arab (Arabic)
-        - Hans (Simplified Han), Hant (Traditional Han)
-        - Grek (Greek), Hebr (Hebrew), Deva (Devanagari)
-      - |
-        **DISTINCTION FROM LANGUAGE**:
-        Script ≠ Language. Serbian uses both Cyrillic and Latin scripts.
-        Latin script is used for English, French, German, etc.
-      - |
-        **ONTOLOGY ALIGNMENT** (verified against data/ontology/):
-
-        | Ontology | Property | Line | Mapping | Notes |
-        |----------|----------|------|---------|-------|
-        | **Schema.org** | `schema:inLanguage` | 21591-21618 | close | Language of content (related but distinct) |
-        | **CIDOC-CRM** | `crm:P72_has_language` | 2839-2852 | related | Associates with E56 Language |
-        | **RiC-O** | `rico:hasOrHadLanguage` | 6716-6761 | related | Connects Agent/Record to Language |
+      - >-
+        USAGE: Used for script type (Latin, Cyrillic, Arabic, etc.), writing
+        direction (LTR, RTL), and historical scripts (Cuneiform,
+        Hieroglyphics).
+      - >-
+        ISO 15924: Standard codes for scripts — Latn (Latin), Cyrl (Cyrillic),
+        Arab (Arabic), Hans (Simplified Han), Hant (Traditional Han), Grek
+        (Greek), Hebr (Hebrew), Deva (Devanagari).
+      - >-
+        DISTINCTION FROM LANGUAGE: Script refers to the writing system while
+        language refers to the linguistic content. Serbian uses both Cyrillic
+        and Latin scripts. Latin script is used for English, French, German,
+        etc.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/in_series.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/in_series.yaml
index bc88089217..05c343278b 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/in_series.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/in_series.yaml
@@ -1,21 +1,87 @@
-id: https://nde.nl/ontology/hc/slot/has_series
-name: has_series
-title: has_series
+# ==============================================================================
+# LinkML Slot Definition: in_series
+# ==============================================================================
+# The larger set of related, often sequential, works, events, or products to
+# which an entity belongs.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                              |
+# |---------------|-----------------------|--------------------------|---------|------------------------------------|
+# | **Schema.org**| `schema:partOfSeries` | schemaorg.owl:29062-29090| close   | "The series to which this episode  |
+# |               |                       |                          |         | or season belongs." Domain:        |
+# |               |                       |                          |         | Episode/Clip/CreativeWorkSeason.   |
+# |               |                       |                          |         | Media-specific; this slot is       |
+# |               |                       |                          |         | broader.                           |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/in_series
+name: in_series
+title: In Series
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
-  has_series:
-    name: has_series
-    description: Archival series within fonds. MIGRATED 2026-02-03 from has_or_had_series for conciseness.
-    slot_uri: hc:hasSeries
+  in_series:
+    slot_uri: hc:inSeries
+    description: >-
+      The larger set of related, often sequential, works, events, or products
+      to which an entity belongs.
+    alt_descriptions:
+      nl: >-
+        De grotere reeks van gerelateerde, vaak opeenvolgende, werken,
+        evenementen of producten waartoe een entiteit behoort.
+      de: >-
+        Die größere Reihe verwandter, oft aufeinanderfolgender Werke,
+        Veranstaltungen oder Produkte, zu der eine Entität gehört.
+      fr: >-
+        L'ensemble plus large d'œuvres, d'événements ou de produits liés,
+        souvent séquentiels, auquel une entité appartient.
+      ar: >-
+        المجموعة الأكبر من الأعمال أو الأحداث أو المنتجات المترابطة، والتي
+        غالبًا ما تكون متسلسلة، التي ينتمي إليها كيان.
+      id: >-
+        Kumpulan yang lebih besar dari karya, peristiwa, atau produk terkait
+        yang sering berurutan, yang menjadi bagian dari suatu entitas.
+      zh: >-
+        实体所属的更大的一组相关的、通常是连续的作品、事件或产品。
+      es: >-
+        El conjunto más amplio de obras, eventos o productos relacionados,
+        a menudo secuenciales, al que pertenece una entidad.
+    structured_aliases:
+      - literal_form: Reeks
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Reihe
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Série
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: سلسلة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Seri
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 系列
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Serie
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     aliases:
       - has_or_had_series
+    close_mappings:
+      - schema:partOfSeries  # schemaorg.owl:29062-29090 — "The series to which this episode or season belongs." Domain: Episode/Clip/CreativeWorkSeason. Media-specific; this slot is broader.
     annotations:
       custodian_types: '["*"]'
+    comments:
+      - "MIGRATED 2026-02-03 from has_or_had_series for conciseness."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/included_in.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/included_in.yaml
index e3d7c22584..054766c353 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/included_in.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/included_in.yaml
@@ -1,25 +1,97 @@
+# ==============================================================================
+# LinkML Slot Definition: included_in
+# ==============================================================================
+# That an entity functions as a constituent part, member, or item contained
+# within a larger whole, collection, or structure.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                    | File/Line                | Mapping | Notes                              |
+# |---------------|-----------------------------|--------------------------|---------|--------------------------------------|
+# | **DCTerms**   | `dcterms:isPartOf`          | dcterms.rdf:1464-1485    | close   | "A related resource in which the     |
+# |               |                             |                          |         | described resource is physically or  |
+# |               |                             |                          |         | logically included." Resource-focused|
+# |               |                             |                          |         | while this slot is entity-general.   |
+# | **RiC-O**     | `rico:isOrWasIncludedIn`    | RiC-O_1-1.rdf:13802-13845| close  | "is or was included in." Domain:     |
+# |               |                             |                          |         | Record/RecordSet. Archives-specific. |
+# | **Schema.org**| `schema:isPartOf`           | schemaorg.owl:22926-22949| close   | "Indicates an item or CreativeWork   |
+# |               |                             |                          |         | that this item is part of." Domain:  |
+# |               |                             |                          |         | CreativeWork only.                   |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/included_in
 name: included_in
-title: included_in
+title: Included In
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   dcterms: http://purl.org/dc/terms/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
+  rico: https://www.ica.org/standards/RiC/ontology#
+  schema: http://schema.org/
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   included_in:
-    name: included_in
-    title: included_in
-    description: Entity in which this entity is included.
     slot_uri: hc:includedIn
-    range: string # uriorcurie
+    description: >-
+      That an entity functions as a constituent part, member, or item contained
+      within a larger whole, collection, or structure.
+    alt_descriptions:
+      nl: >-
+        Dat een entiteit functioneert als een samenstellend deel, lid of item
+        dat zich bevindt binnen een groter geheel, collectie of structuur.
+      de: >-
+        Dass eine Entität als ein Bestandteil, Mitglied oder Element
+        innerhalb eines größeren Ganzen, einer Sammlung oder Struktur
+        fungiert.
+      fr: >-
+        Qu'une entité fonctionne comme une partie constitutive, un membre ou
+        un élément contenu dans un ensemble, une collection ou une structure
+        plus vaste.
+      ar: >-
+        أن كيانًا يعمل كجزء مكوّن أو عضو أو عنصر ضمن كلٍّ أكبر أو مجموعة
+        أو بنية.
+      id: >-
+        Bahwa suatu entitas berfungsi sebagai bagian konstituen, anggota, atau
+        item yang terkandung dalam keseluruhan, koleksi, atau struktur yang
+        lebih besar.
+      zh: >-
+        实体作为构成部分、成员或项目包含在更大的整体、集合或结构中。
+      es: >-
+        Que una entidad funciona como parte constituyente, miembro o elemento
+        contenido dentro de un todo, colección o estructura más grande.
+    structured_aliases:
+      - literal_form: Opgenomen In
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Enthalten In
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Inclus Dans
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مُدرَج في
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Termasuk Dalam
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 包含于
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Incluido En
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
     multivalued: true
     aliases:
       - is_or_was_included_in
+    close_mappings:
+      - dcterms:isPartOf  # dcterms.rdf:1464-1485 — "A related resource in which the described resource is physically or logically included." Resource-focused while this slot is entity-general.
+      - rico:isOrWasIncludedIn  # RiC-O_1-1.rdf:13802-13845 — "is or was included in." Domain: Record/RecordSet, Range: RecordSet. Archives-specific.
+      - schema:isPartOf  # schemaorg.owl:22926-22949 — "Indicates an item or CreativeWork that this item is part of." Domain: CreativeWork only.
     annotations:
       custodian_types: '["*"]'
-    exact_mappings:
-    - dcterms:isPartOf
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/indexed.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/indexed.yaml
deleted file mode 100644
index c8a75e3215..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/indexed.yaml
+++ /dev/null
@@ -1,21 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/indexed
-name: indexed
-title: indexed
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  indexed:
-    name: indexed
-    title: indexed
-    description: Whether the entity has been indexed.
-    slot_uri: hc:indexed
-    range: boolean
-    aliases:
-      - is_or_was_indexed
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/indexed_as.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/indexed_as.yaml
index bfda76a0be..26a598a295 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/indexed_as.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/indexed_as.yaml
@@ -1,69 +1,81 @@
 # ==============================================================================
-# LinkML Slot Definition: has_index_number
+# LinkML Slot Definition: indexed_as
 # ==============================================================================
-# Index number associated with an information carrier or record.
+# The specific keyword, subject heading, or classification code under which an
+# entity is listed, cataloged, or retrievable within a system or database.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
 # No standard ontology mapping identified.
 #
 # CREATED: 2026-02-08
+# UPDATED: 2026-02-08 — Synced alt_descriptions to current English description;
+#   updated header one-liner; updated structured_aliases to match new semantics.
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_index_number
-name: has_index_number
-title: Has Index Number
+id: https://nde.nl/ontology/hc/slot/indexed_as
+name: indexed_as
+title: Indexed As
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
-  has_index_number:
-    slot_uri: hc:hasIndexNumber
+  indexed_as:
+    slot_uri: hc:indexedAs
     description: >-
-      To specify an index number associated with an information carrier or record.
+      The specific keyword, subject heading, or classification code under which
+      an entity is listed, cataloged, or retrievable within a system or
+      database.
     alt_descriptions:
       nl: >-
-        Om een indexnummer aan te geven dat is gekoppeld aan een informatiedrager
-        of record.
+        Het specifieke trefwoord, onderwerpskop of classificatiecode waaronder
+        een entiteit is opgenomen, gecatalogiseerd of vindbaar is binnen een
+        systeem of database.
       de: >-
-        Zur Angabe einer Indexnummer, die einem Informationsträger oder Datensatz
-        zugeordnet ist.
+        Das spezifische Schlüsselwort, die Sachüberschrift oder der
+        Klassifikationscode, unter dem eine Entität in einem System oder einer
+        Datenbank aufgeführt, katalogisiert oder abrufbar ist.
       fr: >-
-        Pour spécifier un numéro d'index associé à un support d'information
-        ou un enregistrement.
+        Le mot-clé spécifique, la vedette-matière ou le code de classification
+        sous lequel une entité est répertoriée, cataloguée ou retrouvable dans
+        un système ou une base de données.
       ar: >-
-        لتحديد رقم فهرس مرتبط بحامل معلومات أو سجل.
+        الكلمة المفتاحية المحددة أو رأس الموضوع أو رمز التصنيف الذي يتم
+        بموجبه إدراج كيان أو فهرسته أو استرجاعه ضمن نظام أو قاعدة بيانات.
       id: >-
-        Untuk menentukan nomor indeks yang terkait dengan pembawa informasi
-        atau catatan.
+        Kata kunci spesifik, tajuk subjek, atau kode klasifikasi yang
+        digunakan untuk mendaftarkan, mengkatalogkan, atau menemukan suatu
+        entitas dalam suatu sistem atau basis data.
       zh: >-
-        用于指定与信息载体或记录关联的索引号。
+        实体在系统或数据库中被列出、编目或可检索所依据的特定关键词、主题标目或
+        分类代码。
       es: >-
-        Para especificar un número de índice asociado a un soporte de información
-        o registro.
+        La palabra clave específica, encabezamiento de materia o código de
+        clasificación bajo el cual una entidad está registrada, catalogada o
+        es recuperable dentro de un sistema o base de datos.
     structured_aliases:
-      - literal_form: Indexnummer
+      - literal_form: Indexering
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: Indexnummer
+      - literal_form: Indexierung
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: Numéro d'index
+      - literal_form: Indexation
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: رقم الفهرس
+      - literal_form: فهرسة
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: Nomor Indeks
+      - literal_form: Pengindeksan
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 索引号
+      - literal_form: 索引
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: Número de índice
+      - literal_form: Indexación
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
@@ -71,6 +83,8 @@ slots:
       - has_or_had_index_number
       - has_sequence_index
       - has_or_had_sequence_index
+      - is_or_was_indexed
+      - indexed
     comments:
       - "MIGRATED 2026-02-03 from has_or_had_index_number for conciseness."
     annotations:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/initiate_on.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/initiate_on.yaml
new file mode 100644
index 0000000000..b7b6a03e76
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/initiate_on.yaml
@@ -0,0 +1,89 @@
+# ==============================================================================
+# LinkML Slot Definition: initiate_on
+# ==============================================================================
+# Date, time, or triggering condition when a process formally begins.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property           | File/Line                | Mapping | Notes                                     |
+# |---------------|--------------------|--------------------------|---------|-------------------------------------------|
+# | **Schema.org**| `schema:validFrom` | schemaorg.owl:39363-39395| close   | "The date when the item becomes valid."   |
+# |               |                    |                          |         | Validity ≠ initiation. Domain: Offer/etc. |
+# | **Schema.org**| `schema:startDate` | schemaorg.owl:36282-36310| close   | "The start date and time of the item."    |
+# |               |                    |                          |         | Domain: Event/Role/etc.                   |
+#
+# Both schema properties relate to temporal beginnings but differ in context:
+# validFrom is about validity periods; startDate is about event/item start times.
+# This slot is about formal initiation of processes/actions/sequences.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/initiate_on
+name: initiate_on
+title: Initiate On
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+default_prefix: hc
+imports:
+  - linkml:types
+slots:
+  initiate_on:
+    description: >-
+      Designates the specific date, time, or triggering condition when a process, action, or sequence formally begins.
+    alt_descriptions:
+      nl: >-
+        Wijst de specifieke datum, tijd of triggerende voorwaarde aan waarop een proces, actie of reeks formeel begint.
+      de: >-
+        Bezeichnet das spezifische Datum, die Uhrzeit oder die auslösende Bedingung, zu der ein Prozess, eine Aktion oder eine Sequenz formell beginnt.
+      fr: >-
+        Désigne la date, l'heure ou la condition déclenchante spécifique à laquelle un processus, une action ou une séquence commence formellement.
+      ar: >-
+        يحدد التاريخ أو الوقت أو الشرط المحفز المحدد الذي تبدأ فيه عملية أو إجراء أو تسلسل رسمياً.
+      id: >-
+        Menentukan tanggal, waktu, atau kondisi pemicu spesifik ketika proses, tindakan, atau urutan secara resmi dimulai.
+      zh: >-
+        指定流程、操作或序列正式开始的具体日期、时间或触发条件。
+      es: >-
+        Designa la fecha, hora o condición desencadenante específica en la que un proceso, acción o secuencia comienza formalmente.
+    structured_aliases:
+      - literal_form: Startdatum
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Startdatum
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Date de début
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تاريخ البدء
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Tanggal Mulai
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 启动日期
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Fecha de inicio
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: date
+    slot_uri: hc:initiateOn
+    aliases:
+      - has_or_had_application_opening_date
+      - is_or_was_opened_on
+      - opened_on
+    close_mappings:
+      - schema:validFrom  # schemaorg.owl:39363-39395 - validity start date
+      - schema:startDate  # schemaorg.owl:36282-36310 - item/event start date
+    annotations:
+      custodian_types: '["*"]'
+      custodian_types_rationale: >-
+        Applicable to all heritage custodian types.
+      custodian_types_primary: M
+      specificity_score: 0.5
+      specificity_rationale: >-
+        Moderately specific slot.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/instance_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/instance_of.yaml
index bb37f2c08b..606343ce74 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/instance_of.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/instance_of.yaml
@@ -1,24 +1,80 @@
+# ==============================================================================
+# LinkML Slot Definition: instance_of
+# ==============================================================================
+# Concrete realization or individual member of a general class or type.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property   | File/Line        | Mapping | Notes                                           |
+# |----------|------------|------------------|---------|-------------------------------------------------|
+# | **RDF**  | `rdf:type` | (RDF core vocab) | exact   | Fundamental RDF typing property; infrastructure  |
+# |          |            |                  |         | property — not suitable as slot_uri.             |
+#
+# rdf:type is the fundamental RDF typing mechanism. Semantically equivalent to
+# "is a concrete realization or individual member of a general class." Kept as
+# exact_mapping but not as slot_uri because it is an RDF infrastructure property.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/instance_of
 name: instance_of
-title: instance_of
+title: Instance Of
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   instance_of:
     name: instance_of
-    title: instance_of
-    description: Type or class of which this is an instance.
+    title: Instance Of
     slot_uri: hc:instanceOf
-    range: string # uriorcurie
+    description: >-
+      Indicates that a specific entity is a concrete realization or individual member of a general class, type, or category.
+    alt_descriptions:
+      nl: >-
+        Geeft aan dat een specifieke entiteit een concrete realisatie of individueel lid is van een algemene klasse, type of categorie.
+      de: >-
+        Gibt an, dass eine bestimmte Entität eine konkrete Realisierung oder ein einzelnes Mitglied einer allgemeinen Klasse, eines Typs oder einer Kategorie ist.
+      fr: >-
+        Indique qu'une entité spécifique est une réalisation concrète ou un membre individuel d'une classe, d'un type ou d'une catégorie générale.
+      ar: >-
+        يشير إلى أن كياناً محدداً هو تجسيد ملموس أو عضو فردي في فئة أو نوع أو تصنيف عام.
+      id: >-
+        Menunjukkan bahwa entitas tertentu adalah realisasi konkret atau anggota individual dari kelas, jenis, atau kategori umum.
+      zh: >-
+        表示特定实体是某一一般类别、类型或范畴的具体实现或个体成员。
+      es: >-
+        Indica que una entidad específica es una realización concreta o un miembro individual de una clase, tipo o categoría general.
+    structured_aliases:
+      - literal_form: Instantie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Instanz
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Instance
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: نسخة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Instansi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 实例
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Instancia
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_instance_of
     annotations:
       custodian_types: '["*"]'
     exact_mappings:
-    - rdf:type
+      - rdf:type  # RDF core — fundamental typing property
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_as.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_as.yaml
index c8709d9af2..523844bc0a 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_as.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_as.yaml
@@ -1,21 +1,79 @@
+# ==============================================================================
+# LinkML Slot Definition: instantiated_as
+# ==============================================================================
+# Concrete realization, manifestation, or specific form of an abstract concept.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property                          | File/Line              | Mapping | Notes                                  |
+# |----------|-----------------------------------|------------------------|---------|----------------------------------------|
+# | **RiC-O**| `rico:hasOrHadInstantiation`      | RiC-O_1-1.rdf:6527-6580| close   | "Connects a Record Resource to an      |
+# |          |                                   |                        |         | Instantiation." Records-specific.      |
+#
+# rico:hasOrHadInstantiation connects RecordResource→Instantiation (archival domain).
+# This slot is broader: any abstract concept assuming a concrete form.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/instantiated_as
 name: instantiated_as
-title: instantiated_as
+title: Instantiated As
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
+  rico: https://www.ica.org/standards/RiC/ontology#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   instantiated_as:
     name: instantiated_as
-    title: instantiated_as
-    description: Type or form as which the entity was instantiated.
+    title: Instantiated As
     slot_uri: hc:instantiatedAs
-    range: string # uriorcurie
+    description: >-
+      Describes the concrete realization, manifestation, or specific form that an abstract concept, class, or work assumes in a real-world context.
+    alt_descriptions:
+      nl: >-
+        Beschrijft de concrete realisatie, manifestatie of specifieke vorm die een abstract concept, klasse of werk aanneemt in een reële context.
+      de: >-
+        Beschreibt die konkrete Realisierung, Manifestation oder spezifische Form, die ein abstraktes Konzept, eine Klasse oder ein Werk in einem realen Kontext annimmt.
+      fr: >-
+        Décrit la réalisation concrète, la manifestation ou la forme spécifique qu'un concept, une classe ou une œuvre abstraite prend dans un contexte réel.
+      ar: >-
+        يصف التجسيد الملموس أو المظهر أو الشكل المحدد الذي يتخذه مفهوم أو فئة أو عمل مجرد في سياق واقعي.
+      id: >-
+        Menjelaskan realisasi konkret, manifestasi, atau bentuk spesifik yang diambil oleh konsep, kelas, atau karya abstrak dalam konteks dunia nyata.
+      zh: >-
+        描述抽象概念、类别或作品在现实环境中所呈现的具体实现、表现形式或特定形态。
+      es: >-
+        Describe la realización concreta, manifestación o forma específica que un concepto, clase u obra abstracta adopta en un contexto real.
+    structured_aliases:
+      - literal_form: Instantiatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Instanziierung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Instanciation
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: إنشاء نسخة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Instansiasi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 实例化
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Instanciación
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_instantiated_as
     annotations:
       custodian_types: '["*"]'
+    close_mappings:
+      - rico:hasOrHadInstantiation  # RiC-O_1-1.rdf:6527-6580 - RecordResource→Instantiation (archival domain)
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_by.yaml
index ebb36661c0..a44f4ec63e 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/instantiated_by.yaml
@@ -1,22 +1,70 @@
+# ==============================================================================
+# LinkML Slot Definition: instantiated_by
+# ==============================================================================
+# Agent or process responsible for creating a concrete instance from an abstract class.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# No standard ontology property found that directly models the agent or process
+# responsible for creating a concrete instance from an abstract template.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/instantiated_by
 name: instantiated_by
-title: instantiated_by
+title: Instantiated By
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   instantiated_by:
     name: instantiated_by
-    title: instantiated_by
-    description: Agent or process that instantiated this entity.
+    title: Instantiated By
     slot_uri: hc:instantiatedBy
-    range: string # uriorcurie
+    description: >-
+      Identifies the agent, process, factory, or mechanism responsible for creating a concrete instance from an abstract class, template, or schema.
+    alt_descriptions:
+      nl: >-
+        Identificeert de agent, het proces, de fabriek of het mechanisme dat verantwoordelijk is voor het creëren van een concrete instantie uit een abstracte klasse, sjabloon of schema.
+      de: >-
+        Identifiziert den Akteur, Prozess, die Fabrik oder den Mechanismus, der für die Erstellung einer konkreten Instanz aus einer abstrakten Klasse, Vorlage oder einem Schema verantwortlich ist.
+      fr: >-
+        Identifie l'agent, le processus, l'usine ou le mécanisme responsable de la création d'une instance concrète à partir d'une classe, d'un modèle ou d'un schéma abstrait.
+      ar: >-
+        يحدد العامل أو العملية أو المصنع أو الآلية المسؤولة عن إنشاء نسخة ملموسة من فئة أو قالب أو مخطط مجرد.
+      id: >-
+        Mengidentifikasi agen, proses, pabrik, atau mekanisme yang bertanggung jawab untuk membuat instansi konkret dari kelas, templat, atau skema abstrak.
+      zh: >-
+        标识负责从抽象类、模板或架构创建具体实例的代理、过程、工厂或机制。
+      es: >-
+        Identifica el agente, proceso, fábrica o mecanismo responsable de crear una instancia concreta a partir de una clase, plantilla o esquema abstracto.
+    structured_aliases:
+      - literal_form: Instantieerder
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Instanziierer
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Instanciateur
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مُنشئ النسخة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Penginstansiasi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 实例化者
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Instanciador
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_instantiated_by
     annotations:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/involved_in.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/involved_in.yaml
index 484597ea37..02d793dc10 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/involved_in.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/involved_in.yaml
@@ -1,22 +1,80 @@
+# ==============================================================================
+# LinkML Slot Definition: involved_in
+# ==============================================================================
+# Agent or entity that participates in an event, process, or activity.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology    | Property                  | File/Line            | Mapping | Notes                                    |
+# |-------------|---------------------------|----------------------|---------|------------------------------------------|
+# | **CIDOC-CRM**| `crm:P11i_participated_in`| CIDOC_CRM:1422-1433 | close   | "participated in." Domain: E39_Actor,    |
+# |             |                           |                      |         | Range: E5_Event. Actor→Event only.       |
+#
+# crm:P11i_participated_in is specifically Actor→Event participation.
+# This slot is broader: any entity playing a part in any process or activity.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/involved_in
 name: involved_in
-title: involved_in
+title: Involved In
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
+  crm: http://www.cidoc-crm.org/cidoc-crm/
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   involved_in:
     name: involved_in
-    title: involved_in
-    description: Activity or event in which the entity was involved.
+    title: Involved In
     slot_uri: hc:involvedIn
-    range: string # uriorcurie
+    description: >-
+      Indicates that an agent, entity, or object plays a part, participates, or is associated with a particular event, process, or activity.
+    alt_descriptions:
+      nl: >-
+        Geeft aan dat een agent, entiteit of object een rol speelt, deelneemt aan of betrokken is bij een bepaalde gebeurtenis, proces of activiteit.
+      de: >-
+        Gibt an, dass ein Akteur, eine Entität oder ein Objekt an einem bestimmten Ereignis, Prozess oder einer Aktivität teilnimmt, mitwirkt oder damit verbunden ist.
+      fr: >-
+        Indique qu'un agent, une entité ou un objet joue un rôle, participe ou est associé à un événement, processus ou activité particulier.
+      ar: >-
+        يشير إلى أن عاملاً أو كياناً أو كائناً يلعب دوراً أو يشارك أو يرتبط بحدث أو عملية أو نشاط معين.
+      id: >-
+        Menunjukkan bahwa agen, entitas, atau objek berperan, berpartisipasi, atau terkait dengan peristiwa, proses, atau aktivitas tertentu.
+      zh: >-
+        表示某一代理、实体或对象在特定事件、过程或活动中发挥作用、参与其中或与之相关联。
+      es: >-
+        Indica que un agente, entidad u objeto desempeña un papel, participa o está asociado con un evento, proceso o actividad particular.
+    structured_aliases:
+      - literal_form: Betrokkenheid
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Beteiligung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Implication
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مشاركة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Keterlibatan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 参与
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Participación
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     multivalued: true
     aliases:
       - is_or_was_involved_in
     annotations:
       custodian_types: '["*"]'
+    close_mappings:
+      - crm:P11i_participated_in  # CIDOC_CRM:1422-1433 - Actor→Event participation
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/last_updated_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/last_updated_at.yaml
deleted file mode 100644
index 80422e200e..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/last_updated_at.yaml
+++ /dev/null
@@ -1,25 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/last_updated_at
-name: last_updated_at
-title: last_updated_at
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  last_updated_at:
-    name: last_updated_at
-    title: last_updated_at
-    description: Date and time when the entity was last updated.
-    slot_uri: hc:lastUpdatedAt
-    range: datetime
-    aliases:
-      - is_or_was_last_updated_at
-    annotations:
-      custodian_types: '["*"]'
-    exact_mappings:
-    - dcterms:modified
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/listed_in.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/listed_in.yaml
index aeb2b94ef3..5111f609dd 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/listed_in.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/listed_in.yaml
@@ -42,10 +42,6 @@ prefixes:
 
 default_prefix: hc
 
-description: |
-  To be recorded or enumerated as an item within a specific catalog, register,
-  or structured collection.
-
 imports:
   - linkml:types
 
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/located_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/located_at.yaml
index 6c42aaa909..6d08942d24 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/located_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/located_at.yaml
@@ -1,25 +1,82 @@
+# ==============================================================================
+# LinkML Slot Definition: located_at
+# ==============================================================================
+# Specific physical coordinates, address, or fixed point of an entity.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property           | File/Line               | Mapping | Notes                                    |
+# |---------------|--------------------|-------------------------|---------|------------------------------------------|
+# | **Schema.org**| `schema:location`  | schemaorg.owl:25018-25046| close   | "The location of, for example, where an  |
+# |               |                    |                         |         | event is happening..." General location;  |
+# |               |                    |                         |         | this slot is more specific (coordinates). |
+#
+# schema:location is a general-purpose location property (Event/Org/Action domain).
+# This slot specifically identifies physical coordinates, address, or fixed point —
+# more specific than schema:location's broad scope.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/located_at
 name: located_at
-title: located_at
+title: Located At
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   located_at:
     name: located_at
-    title: located_at
-    description: Location where the entity is located.
+    title: Located At
     slot_uri: hc:locatedAt
-    range: string # uriorcurie
+    description: >-
+      Identifies the specific physical coordinates, address, or fixed point where an object, building, or entity is situated.
+    alt_descriptions:
+      nl: >-
+        Identificeert de specifieke fysieke coördinaten, het adres of het vaste punt waar een object, gebouw of entiteit zich bevindt.
+      de: >-
+        Identifiziert die spezifischen physischen Koordinaten, die Adresse oder den festen Punkt, an dem sich ein Objekt, Gebäude oder eine Entität befindet.
+      fr: >-
+        Identifie les coordonnées physiques spécifiques, l'adresse ou le point fixe où un objet, un bâtiment ou une entité est situé.
+      ar: >-
+        يحدد الإحداثيات الفعلية المحددة أو العنوان أو النقطة الثابتة التي يقع فيها كائن أو مبنى أو كيان.
+      id: >-
+        Mengidentifikasi koordinat fisik spesifik, alamat, atau titik tetap tempat suatu objek, bangunan, atau entitas berada.
+      zh: >-
+        标识对象、建筑物或实体所处的具体物理坐标、地址或固定位置点。
+      es: >-
+        Identifica las coordenadas físicas específicas, la dirección o el punto fijo donde se encuentra un objeto, edificio o entidad.
+    structured_aliases:
+      - literal_form: Locatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Standort
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Emplacement
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: موقع
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Lokasi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 位置
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Ubicación
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_located_at
       - temporarily_located_at
     annotations:
       custodian_types: '["*"]'
-    exact_mappings:
-    - schema:location
+    close_mappings:
+      - schema:location  # schemaorg.owl:25018-25046 - general location (Event/Org/Action domain)
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/located_in.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/located_in.yaml
index b33fb4681c..0c78c7b033 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/located_in.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/located_in.yaml
@@ -1,17 +1,23 @@
 # ==============================================================================
 # LinkML Slot Definition: located_in
 # ==============================================================================
-# Links an entity to a place where it is located.
+# Spatial containment within a geographic area or administrative region.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
-# | Ontology      | Property          | Mapping | Notes                            |
-# |---------------|-------------------|---------|----------------------------------|
-# | **Schema.org**| `schema:location` | exact   | Schema.org location              |
-# | **LOCN**      | `locn:location`   | exact   | ISA Core Location property       |
-# | **GeoNames**  | `gn:locatedIn`    | close   | GeoNames location                |
-# | **RiC-O**     | `rico:isOrWasLocatedAt`| close| RiC-O location                  |
+#
+# | Ontology      | Property                   | File/Line                  | Mapping | Notes                                     |
+# |---------------|----------------------------|----------------------------|---------|-------------------------------------------|
+# | **Schema.org**| `schema:location`          | schemaorg.owl:25018-25046  | slot_uri| "The location of..." General location.    |
+# | **GeoNames**  | `gn:locatedIn`             | geonames_ontology.rdf:277-280| close | "Subject resource is located in the       |
+# |               |                            |                            |         | object feature." GeoNames Feature domain. |
+# | **RiC-O**     | `rico:hasOrHadLocation`    | RiC-O_1-1.rdf:6852-6889   | close   | Thing→Place. Inverse of isOrWasLocationOf.|
+#
+# slot_uri uses schema:location as the primary URI.
+# LOCN (locn:location) removed — not available in data/ontology/ for verification.
 #
 # CREATED: 2026-02-03
+# UPDATED: 2026-02-08 — Pass 2: synced alt_descriptions, removed locn:location,
+#   removed redundant exact_mapping, cleaned prefixes, added structured_aliases.
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/located_in
@@ -23,41 +29,65 @@ prefixes:
   schema: http://schema.org/
   gn: http://www.geonames.org/ontology#
   rico: https://www.ica.org/standards/RiC/ontology#
-  locn: http://www.w3.org/ns/locn#
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
-description: |
-  Links an entity to a place where it is located.
 imports:
-- linkml:types
+  - linkml:types
 slots:
   located_in:
     slot_uri: schema:location
-    description: |
-      Links an entity to a place where it is located.
-      
-      **DISTINCTION FROM located_within**:
-      - `located_in`: Entity is AT a place (city/settlement level)
-      - `located_within`: Entity is CONTAINED IN a larger place (hierarchical)
+    description: >-
+      Describes the spatial relationship where an entity is contained within a larger geographic area, administrative region, or physical boundary.
+    alt_descriptions:
+      nl: >-
+        Beschrijft de ruimtelijke relatie waarbij een entiteit zich bevindt binnen een groter geografisch gebied, administratieve regio of fysieke begrenzing.
+      de: >-
+        Beschreibt die räumliche Beziehung, bei der eine Entität in einem größeren geografischen Gebiet, einer Verwaltungsregion oder einer physischen Grenze enthalten ist.
+      fr: >-
+        Décrit la relation spatiale dans laquelle une entité est contenue dans une zone géographique plus grande, une région administrative ou une limite physique.
+      ar: >-
+        يصف العلاقة المكانية حيث يكون كيان ما موجوداً ضمن منطقة جغرافية أكبر أو منطقة إدارية أو حدود مادية.
+      id: >-
+        Menjelaskan hubungan spasial di mana suatu entitas berada dalam wilayah geografis, daerah administratif, atau batas fisik yang lebih besar.
+      zh: >-
+        描述实体位于更大地理区域、行政区划或物理边界内的空间关系。
+      es: >-
+        Describe la relación espacial en la que una entidad está contenida dentro de un área geográfica más grande, una región administrativa o un límite físico.
+    structured_aliases:
+      - literal_form: Gelegen in
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Gelegen in
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Situé dans
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: يقع في
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Terletak di
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 位于
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Ubicado en
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     required: false
-    exact_mappings:
-      - schema:location
-      - locn:location
     close_mappings:
-      - gn:locatedIn
-      - rico:isOrWasLocatedAt
+      - gn:locatedIn  # geonames_ontology.rdf:277-280 - GeoNames Feature containment
+      - rico:hasOrHadLocation  # RiC-O_1-1.rdf:6852-6889 - Thing→Place
     aliases:
       - is_or_was_located_in
+      - located_within
     annotations:
       custodian_types: '["*"]'
       specificity_score: 0.2
     examples:
       - value: Amsterdam
         description: Entity located in Amsterdam.
+    comments:
+      - "Distinction from located_at: located_in describes containment within a geographic area (city/region level); located_at identifies a specific physical address or coordinate point."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/located_within.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/located_within.yaml
deleted file mode 100644
index 8e8cc5ff73..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/located_within.yaml
+++ /dev/null
@@ -1,58 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/located_within
-name: located_within
-title: located within
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  rico: https://www.ica.org/standards/RiC/ontology#
-  org: http://www.w3.org/ns/org#
-  oa: http://www.w3.org/ns/oa#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  located_within:
-    slot_uri: hc:locatedWithin
-    description: 'Links an entity to a place that contains or contained it.
-
-      **TEMPORAL SEMANTICS** (RiC-O style): The "is_or_was" naming indicates that
-      containment can change: - Institutions may relocate to different cities - Administrative
-      boundaries may be redrawn - Historical locations preserved for provenance
-
-      **USE CASES**: - Institution within a city/region - Collection within a building/room
-      - Archive within an administrative area
-
-      **REPLACES**: - `within_place` (primary location containment) - `within_auxiliary_place`
-      (secondary location containment)
-
-
-      MIGRATED 2026-02-03 from is_or_was_located_within for conciseness.'
-    range: string
-    multivalued: true
-    aliases:
-    - is_or_was_located_within
-    exact_mappings:
-    - schema:containedInPlace
-    close_mappings:
-    - gn:parentFeature
-    annotations:
-      custodian_types: '["*"]'
-      custodian_types_rationale: Location containment applicable to all custodian
-        types.
-      custodian_types_primary: '*'
-      specificity_score: 0.2
-      specificity_rationale: Low specificity - universal geographic relationship.
-    examples:
-    - value: "is_or_was_located_within:\n  - place_name: \"Amsterdam\"\n    place_type:\
-        \ \"settlement\"\n    geonames_id: 2759794\n"
-      description: Institution located within Amsterdam.
-    - value: "is_or_was_located_within:\n  - place_name: \"Noord-Holland\"\n    place_type:\
-        \ \"region\"\n    iso_code: \"NL-NH\"\n  - place_name: \"Netherlands\"\n \
-        \   place_type: \"country\"\n    iso_code: \"NL\"\n"
-      description: Multiple containment levels for an institution.
-    comments:
-    - Created from slot_fixes.yaml migration (2026-01-14)
-    - Replaces within_place and within_auxiliary_place slots
-    - Supports multiple containment relationships (multivalued)
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/is_location_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/location_of.yaml
similarity index 100%
rename from schemas/20251121/linkml/modules/slots/20260202_matang/is_location_of.yaml
rename to schemas/20251121/linkml/modules/slots/20260202_matang/location_of.yaml
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/managed_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/managed_by.yaml
index 29e72755e3..5371a03db6 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/managed_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/managed_by.yaml
@@ -1,27 +1,73 @@
+# ==============================================================================
+# LinkML Slot Definition: managed_by
+# ==============================================================================
+# Agent or organization responsible for administration or stewardship.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# No standard ontology property found that directly models the agent responsible
+# for administration, control, maintenance, or stewardship of a resource or entity.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/managed_by
 name: managed_by
-title: managed_by
+title: Managed By
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   managed_by:
     name: managed_by
-    title: managed_by
-    description: Entity or agent that manages this entity.
+    title: Managed By
     slot_uri: hc:managedBy
-    range: string # uriorcurie
+    description: >-
+      Identifies the agent, organization, or software system responsible for the administration, control, maintenance, or stewardship of a resource, project, or entity.
+    alt_descriptions:
+      nl: >-
+        Identificeert de agent, organisatie of het softwaresysteem dat verantwoordelijk is voor het beheer, de controle, het onderhoud of het rentmeesterschap van een bron, project of entiteit.
+      de: >-
+        Identifiziert den Akteur, die Organisation oder das Softwaresystem, das für die Verwaltung, Kontrolle, Wartung oder Betreuung einer Ressource, eines Projekts oder einer Entität verantwortlich ist.
+      fr: >-
+        Identifie l'agent, l'organisation ou le système logiciel responsable de l'administration, du contrôle, de la maintenance ou de la gestion d'une ressource, d'un projet ou d'une entité.
+      ar: >-
+        يحدد العامل أو المنظمة أو النظام البرمجي المسؤول عن إدارة أو مراقبة أو صيانة أو رعاية مورد أو مشروع أو كيان.
+      id: >-
+        Mengidentifikasi agen, organisasi, atau sistem perangkat lunak yang bertanggung jawab atas administrasi, pengendalian, pemeliharaan, atau pengelolaan sumber daya, proyek, atau entitas.
+      zh: >-
+        标识负责资源、项目或实体的管理、控制、维护或监管的代理、组织或软件系统。
+      es: >-
+        Identifica el agente, organización o sistema de software responsable de la administración, control, mantenimiento o custodia de un recurso, proyecto o entidad.
+    structured_aliases:
+      - literal_form: Beheerder
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Verwalter
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Gestionnaire
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مدير
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Pengelola
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 管理者
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Gestor
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_managed_by
+      - is_or_was_platform_of
+      - platform_of
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/measured_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/measured_through.yaml
index d67777139d..bdf6310af6 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/measured_through.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/measured_through.yaml
@@ -1,25 +1,83 @@
+# ==============================================================================
+# LinkML Slot Definition: measured_through
+# ==============================================================================
+# Instrument, method, protocol, or sensor used to obtain a measurement.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology  | Property            | File/Line       | Mapping | Notes                                       |
+# |-----------|---------------------|-----------------|---------|---------------------------------------------|
+# | **SOSA**  | `sosa:madeBySensor` | sosa.ttl:244-250| related | "Relation between an Observation and the    |
+# |           |                     |                 |         | Sensor which made the Observation." Sensor- |
+# |           |                     |                 |         | specific; this slot is broader (any method).|
+#
+# sosa:madeBySensor is restricted to Observation→Sensor relationships.
+# This slot covers any instrument, method, protocol, or sensor used to obtain
+# any measurement — broader scope.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/measured_through
 name: measured_through
-title: measured through
+title: Measured Through
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   sosa: http://www.w3.org/ns/sosa/
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   measured_through:
     name: measured_through
-    title: measured_through
-    description: |
-      To specify the instrument, method, protocol, or sensor used to obtain a measurement or generate a value during a measurement event.
+    title: Measured Through
     slot_uri: hc:measuredThrough
-    range: string # uriorcurie
+    description: >-
+      To specify the instrument, method, protocol, or sensor used to obtain a measurement or generate a value during a measurement event.
+    alt_descriptions:
+      nl: >-
+        Specificeert het instrument, de methode, het protocol of de sensor die is gebruikt om een meting uit te voeren of een waarde te genereren tijdens een meetgebeurtenis.
+      de: >-
+        Gibt das Instrument, die Methode, das Protokoll oder den Sensor an, der zur Durchführung einer Messung oder zur Erzeugung eines Wertes während eines Messereignisses verwendet wurde.
+      fr: >-
+        Spécifie l'instrument, la méthode, le protocole ou le capteur utilisé pour obtenir une mesure ou générer une valeur lors d'un événement de mesure.
+      ar: >-
+        يحدد الأداة أو الطريقة أو البروتوكول أو المستشعر المستخدم للحصول على قياس أو توليد قيمة أثناء حدث قياس.
+      id: >-
+        Menentukan instrumen, metode, protokol, atau sensor yang digunakan untuk memperoleh pengukuran atau menghasilkan nilai selama peristiwa pengukuran.
+      zh: >-
+        指定在测量事件中用于获取测量值或生成数值的仪器、方法、协议或传感器。
+      es: >-
+        Especifica el instrumento, método, protocolo o sensor utilizado para obtener una medición o generar un valor durante un evento de medición.
+    structured_aliases:
+      - literal_form: Meetinstrument
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Messinstrument
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Instrument de mesure
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: أداة قياس
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Instrumen Pengukuran
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 测量工具
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Instrumento de medición
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     # range: Measurement
     multivalued: true
     aliases:
       - has_or_had_measurement
     annotations:
       custodian_types: '["*"]'
+    related_mappings:
+      - sosa:madeBySensor  # sosa.ttl:244-250 - Observation→Sensor (sensor-specific)
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/member_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/member_of.yaml
index 58fce14419..3eb6f2b8d6 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/member_of.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/member_of.yaml
@@ -1,58 +1,105 @@
+# ==============================================================================
+# LinkML Slot Definition: member_of
+# ==============================================================================
+# Membership relationship between an entity and a group or organization.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                  | File/Line               | Mapping | Notes                                      |
+# |---------------|---------------------------|-------------------------|---------|--------------------------------------------|
+# | **W3C Org**   | `org:memberOf`            | org.rdf:743-756         | exact   | "Person is a member of the Organization."  |
+# |               |                           |                         |         | Domain: Agent, Range: Organization.        |
+# | **Schema.org**| `schema:memberOf`         | schemaorg.owl:26080-26108| close  | "Org/ProgramMembership to which Person or  |
+# |               |                           |                         |         | Org belongs." Person|Org domain only.      |
+# | **RiC-O**     | `rico:isOrWasMemberOf`    | RiC-O_1-1.rdf:14505-14550| close  | Person→Group. Person domain only.          |
+# | **FOAF**      | `foaf:member`             | foaf.ttl:410-417        | related | "Member of a Group." INVERSE direction:    |
+# |               |                           |                         |         | Group→Agent (not Agent→Group).             |
+#
+# org:memberOf is the closest match. It explicitly covers "affiliation or other
+# involvement in the organization" beyond formal membership.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/member_of
 name: member_of
-title: member of
+title: Member Of
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
   rico: https://www.ica.org/standards/RiC/ontology#
   org: http://www.w3.org/ns/org#
-  oa: http://www.w3.org/ns/oa#
+  foaf: http://xmlns.com/foaf/0.1/
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   member_of:
     slot_uri: hc:memberOf
-    description: "Encompassing bodies (networks, consortia, umbrella organizations)\
-      \ that \nthis custodian is or was a member of.\n\n**RiC-O Temporal Pattern**:\
-      \ Uses `isOrWas*` pattern to explicitly\nacknowledge that membership relationships\
-      \ can change over time.\nA custodian may have been a member of a network in\
-      \ the past but\nno longer participates.\n\n**Distinction from is_or_was_encompassed_by**:\n\
-      - `is_or_was_member_of`: MEMBERSHIP relationship (voluntary, network participation)\n\
-      - `is_or_was_encompassed_by`: GOVERNANCE relationship (hierarchical, umbrella\
-      \ oversight)\n\nBoth may apply: A custodian can be:\n1. Under governance of\
-      \ Ministry (is_or_was_encompassed_by)\n2. Member of NDE network (is_or_was_member_of)\n\
-      \n\nMIGRATED 2026-02-03 from is_or_was_member_of for conciseness."
+    description: >-
+      Signifies that an individual, organization, or object belongs to a group, association, or collection as a constituent part or affiliate.
+    alt_descriptions:
+      nl: >-
+        Geeft aan dat een individu, organisatie of object behoort tot een groep, vereniging of collectie als bestanddeel of aangeslotene.
+      de: >-
+        Gibt an, dass eine Person, Organisation oder ein Objekt als Bestandteil oder Mitglied zu einer Gruppe, Vereinigung oder Sammlung gehört.
+      fr: >-
+        Signifie qu'un individu, une organisation ou un objet appartient à un groupe, une association ou une collection en tant que partie constituante ou affilié.
+      ar: >-
+        يدل على أن فرداً أو منظمة أو كائناً ينتمي إلى مجموعة أو جمعية أو مجموعة كجزء مكون أو منتسب.
+      id: >-
+        Menandakan bahwa individu, organisasi, atau objek termasuk dalam suatu kelompok, asosiasi, atau koleksi sebagai bagian konstituen atau afiliasi.
+      zh: >-
+        表示个人、组织或对象作为组成部分或关联方隶属于某个团体、协会或集合。
+      es: >-
+        Significa que un individuo, organización u objeto pertenece a un grupo, asociación o colección como parte constituyente o afiliado.
+    structured_aliases:
+      - literal_form: Lidmaatschap
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Mitgliedschaft
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Adhésion
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: عضوية
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Keanggotaan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 成员资格
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Membresía
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     aliases:
-    - is_or_was_member_of
+      - is_or_was_member_of
     exact_mappings:
-    - org:memberOf
+      - org:memberOf  # org.rdf:743-756 - Agent→Organization membership/affiliation
     close_mappings:
-    - rico:isOrWasMemberOf
+      - schema:memberOf  # schemaorg.owl:26080-26108 - Person|Org→Org|ProgramMembership
+      - rico:isOrWasMemberOf  # RiC-O_1-1.rdf:14505-14550 - Person→Group (restricted domain)
     related_mappings:
-    - foaf:member
-    - schema:memberOf
+      - foaf:member  # foaf.ttl:410-417 - INVERSE: Group→Agent (not Agent→Group)
     annotations:
       inverse_slot: has_or_had_member
       deprecates: is_member_of
       rico_pattern: isOrWasMemberOf
       custodian_types: '["*"]'
     examples:
-    - value: "Custodian:\n  hc_id: \"https://nde.nl/ontology/hc/nl-nh-ams-m-rm-q190804\"\
-        \n  preferred_label: \"Rijksmuseum\"\n  \n  # Governance hierarchy\n  is_or_was_encompassed_by:\n\
-        \    - organization_name: \"Ministry of OCW\"\n  \n  # Network membership\
-        \ (voluntary)\n  is_or_was_member_of:\n    - organization_name: \"Netwerk\
-        \ Digitaal Erfgoed\"\n      organization_type: \"NETWORK\"\n"
-      description: Rijksmuseum as both governed entity and network member
+      - value: "Rijksmuseum member of Netwerk Digitaal Erfgoed"
+        description: Rijksmuseum as a network member (voluntary membership).
     comments:
-    - 'RiC-O pattern: isOrWas* for temporal membership relationships'
-    - Inverse of has_or_had_member (org:hasMember)
-    - Complements is_or_was_encompassed_by (governance) with membership (voluntary)
-    - Creates owl:inverseOf axiom in RDF output
-    - 'Inverse: `has_or_had_member` (org:hasMember) | Pattern: If Custodian memberOf
-      Network, then Network hasMember Custodian'
-    - 'Deprecates: is_member_of (non-temporal naming)'
+      - "RiC-O pattern: isOrWas* for temporal membership relationships."
+      - "Inverse of has_or_had_member (org:hasMember)."
+      - "Complements is_or_was_encompassed_by (governance) with membership (voluntary participation)."
+      - "Membership relationships can change over time. A custodian may have been a member of a network in the past but no longer participates."
+      - "Distinction from is_or_was_encompassed_by: member_of = MEMBERSHIP (voluntary, network participation); encompassed_by = GOVERNANCE (hierarchical, umbrella oversight). Both may apply simultaneously."
+      - "Deprecates: is_member_of (non-temporal naming)."
+      - "MIGRATED 2026-02-03 from is_or_was_member_of for conciseness."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/approximate.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/approximate.yaml
deleted file mode 100644
index 6b3b462b1d..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/approximate.yaml
+++ /dev/null
@@ -1,36 +0,0 @@
-# ==============================================================================
-# LinkML Slot Definition: approximate
-# ==============================================================================
-# Whether something is approximate.
-#
-# CREATED: 2026-02-03
-# ==============================================================================
-
-id: https://nde.nl/ontology/hc/slot/approximate
-name: approximate
-title: Approximate
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-description: |
-  Whether something is approximate.
-imports:
-- linkml:types
-slots:
-  approximate:
-    slot_uri: hc:approximate
-    description: |
-      Whether something is approximate.
-    range: boolean
-    multivalued: false
-    aliases:
-      - is_or_was_approximate
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/basionym_authority.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/basionym_authority.yaml
deleted file mode 100644
index b17bb3180c..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/basionym_authority.yaml
+++ /dev/null
@@ -1,14 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/basionym_authority
-name: basionym_authority
-imports:
-  - linkml:types
-slots:
-  basionym_authority:
-    slot_uri: hc:basionymAuthority
-    range: string # uriorcurie
-    description: 'Authority of the original name (basionym) if this is a recombination.
-      The parenthetical authority in "(Gray, 1821) Smith, 1900".
-      '
-    inlined: false # Fixed invalid inline for primitive type
-    annotations:
-      custodian_types: "['*']"
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted.yaml
deleted file mode 100644
index 21db50fdb0..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted.yaml
+++ /dev/null
@@ -1,29 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/grants_or_granted
-name: grants_or_granted
-title: grants_or_granted
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  grants_or_granted:
-    name: grants_or_granted
-    description: Grants or granted a right, authority, or permission.
-    slot_uri: schema:grant
-    range: string # uriorcurie
-    # range: GovernanceAuthority
-    multivalued: true
-    annotations:
-      custodian_types: '["*"]'
-    exact_mappings:
-    - schema:grant
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted_access_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted_access_through.yaml
deleted file mode 100644
index b167fb8d32..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/grants_or_granted_access_through.yaml
+++ /dev/null
@@ -1,28 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/grants_or_granted_access_through
-name: grants_or_granted_access_through
-title: grants_or_granted_access_through
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  grants_or_granted_access_through:
-    name: grants_or_granted_access_through
-    description: Indicates that an entity grants or granted access through a specific application or mechanism. MIGRATED from has_access_application_url per Rule 53. Follows RiC-O naming convention.
-    slot_uri: schema:potentialAction
-    range: string # uriorcurie
-    multivalued: true
-    annotations:
-      custodian_types: '["*"]'
-    exact_mappings:
-    - schema:potentialAction
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/warrants_or_warranted.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/warrants_or_warranted.yaml
deleted file mode 100644
index 424ec9ddfc..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/warrants_or_warranted.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/warrants_or_warranted
-name: warrants_or_warranted_slot
-title: Warrants or Warranted Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  prov: http://www.w3.org/ns/prov#
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  warrants_or_warranted:
-    range: string # uriorcurie
-    # range: Claim
-    multivalued: true
-    inlined_as_list: false # Fixed invalid inline for primitive type
-    slot_uri: hc:warrantsOrWarranted
-    description: "Claims that warrant (support/justify) this entity or are warranted by it.\n\nFrom argumentation theory (Toulmin model):\n- Claims provide evidence that WARRANTS conclusions\n- A claim can be WARRANTED BY supporting evidence\n\nThis slot captures the bidirectional relationship between claims\nand the entities they support or are supported by.\n\n**Usage Patterns**:\n- WebEnrichment.warrants_or_warranted \u2192 WebClaim instances\n- ResearchSource.warrants_or_warranted \u2192 Claim instances\n- PersonProfile.warrants_or_warranted \u2192 PersonWebClaim instances\n\n**MIGRATION NOTE (2026-01-19)**:\nReplaces `claim` slot per slot_fixes.yaml (Rule 53/56).\nUses RiC-O temporal naming convention (warrants_or_warranted).\n"
-    exact_mappings:
-    - prov:wasQuotedFrom
-    close_mappings:
-    - prov:wasDerivedFrom
-    comments:
-    - 'CREATED 2026-01-19: Replaces claim slot per Rule 53/56'
-    - Uses argumentation semantics from Toulmin model
-    - Range is base Claim class - subclasses narrow as needed
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/new/was_fetched_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/new/was_fetched_at.yaml
deleted file mode 100644
index 5ffc44890b..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/new/was_fetched_at.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/was_fetched_at
-name: was_fetched_at
-title: Was Fetched At
-description: Was fetched at.
-imports:
-- linkml:types
-prefixes:
-  linkml: https://w3id.org/linkml/
-  schema: http://schema.org/
-  hc: https://nde.nl/ontology/hc/
-# default_range: string
-slots:
-  was_fetched_at:
-    slot_uri: hc:was_fetched_at
-    range: string
-    multivalued: false
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/observed_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/observed_by.yaml
index f22fee112e..7764dfe189 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/observed_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/observed_by.yaml
@@ -1,24 +1,81 @@
+# ==============================================================================
+# LinkML Slot Definition: observed_by
+# ==============================================================================
+# Agent, sensor, or instrument that perceived or recorded an event or entity.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property            | File/Line       | Mapping | Notes                                      |
+# |----------|---------------------|-----------------|---------|--------------------------------------------|
+# | **SOSA** | `sosa:madeBySensor` | sosa.ttl:244-250| close   | "Relation between an Observation and the   |
+# |          |                     |                 |         | Sensor which made the Observation." Domain:|
+# |          |                     |                 |         | Observation, Range: Sensor. Sensor-specific.|
+#
+# sosa:madeBySensor is restricted to Observation→Sensor relationships.
+# This slot is broader: any agent, sensor, or instrument that perceived,
+# measured, or recorded anything.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/observed_by
 name: observed_by
-title: observed_by
+title: Observed By
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   sosa: http://www.w3.org/ns/sosa/
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
   observed_by:
     name: observed_by
-    title: observed_by
-    description: Agent or sensor that observed the entity.
+    title: Observed By
     slot_uri: hc:observedBy
-    range: string # uriorcurie
+    description: >-
+      Identifies the agent, sensor, or instrument that perceived, measured, or recorded a specific event, phenomenon, or entity.
+    alt_descriptions:
+      nl: >-
+        Identificeert de agent, sensor of het instrument dat een specifieke gebeurtenis, fenomeen of entiteit heeft waargenomen, gemeten of geregistreerd.
+      de: >-
+        Identifiziert den Akteur, Sensor oder das Instrument, das ein bestimmtes Ereignis, Phänomen oder eine Entität wahrgenommen, gemessen oder aufgezeichnet hat.
+      fr: >-
+        Identifie l'agent, le capteur ou l'instrument qui a perçu, mesuré ou enregistré un événement, phénomène ou entité spécifique.
+      ar: >-
+        يحدد العامل أو المستشعر أو الأداة التي رصدت أو قاست أو سجلت حدثاً أو ظاهرة أو كياناً محدداً.
+      id: >-
+        Mengidentifikasi agen, sensor, atau instrumen yang mengamati, mengukur, atau mencatat peristiwa, fenomena, atau entitas tertentu.
+      zh: >-
+        标识感知、测量或记录特定事件、现象或实体的代理、传感器或仪器。
+      es: >-
+        Identifica el agente, sensor o instrumento que percibió, midió o registró un evento, fenómeno o entidad específica.
+    structured_aliases:
+      - literal_form: Waarnemer
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Beobachter
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Observateur
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مُراقِب
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Pengamat
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 观察者
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Observador
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_observed_by
     annotations:
       custodian_types: '["*"]'
-    exact_mappings:
-    - sosa:madeBySensor
+    close_mappings:
+      - sosa:madeBySensor  # sosa.ttl:244-250 - Observation→Sensor (sensor-specific)
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/observed_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/observed_through.yaml
index 1aac37c163..b835067640 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/observed_through.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/observed_through.yaml
@@ -1,35 +1,79 @@
-id: https://nde.nl/ontology/hc/slot/has_custodian_observation
-name: has_custodian_observation
-title: has custodian observation
+# ==============================================================================
+# LinkML Slot Definition: observed_through
+# ==============================================================================
+# Instrument, mechanism, or medium used to perceive, measure, or record.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# No standard ontology property found that directly models the specific instrument,
+# mechanism, interface, or medium used for observation. Previous ldp:contains mapping
+# was removed (LDP not in ontology files; semantically incorrect — container
+# membership ≠ observation instruments).
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/observed_through
+name: observed_through
+title: Observed Through
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  rico: https://www.ica.org/standards/RiC/ontology#
-  org: http://www.w3.org/ns/org#
-  oa: http://www.w3.org/ns/oa#
 default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
 slots:
-  has_custodian_observation:
-    slot_uri: hc:hasCustodianObservation
-    description: 'Collection of custodian observations in the container
-
-
-      MIGRATED 2026-02-03 from has_or_had_custodian_observation for conciseness.'
+  observed_through:
+    slot_uri: hc:observedThrough
+    description: >-
+      Denotes the specific instrument, mechanism, interface, or medium utilized to perceive, measure, or record a phenomenon or entity.
+    alt_descriptions:
+      nl: >-
+        Duidt het specifieke instrument, mechanisme, interface of medium aan dat is gebruikt om een fenomeen of entiteit waar te nemen, te meten of te registreren.
+      de: >-
+        Bezeichnet das spezifische Instrument, den Mechanismus, die Schnittstelle oder das Medium, das zur Wahrnehmung, Messung oder Aufzeichnung eines Phänomens oder einer Entität verwendet wird.
+      fr: >-
+        Désigne l'instrument, le mécanisme, l'interface ou le média spécifique utilisé pour percevoir, mesurer ou enregistrer un phénomène ou une entité.
+      ar: >-
+        يشير إلى الأداة أو الآلية أو الواجهة أو الوسيط المحدد المستخدم لرصد أو قياس أو تسجيل ظاهرة أو كيان.
+      id: >-
+        Menunjukkan instrumen, mekanisme, antarmuka, atau media spesifik yang digunakan untuk mengamati, mengukur, atau mencatat fenomena atau entitas.
+      zh: >-
+        表示用于感知、测量或记录现象或实体的特定仪器、机制、接口或媒介。
+      es: >-
+        Denota el instrumento, mecanismo, interfaz o medio específico utilizado para percibir, medir o registrar un fenómeno o entidad.
+    structured_aliases:
+      - literal_form: Waarnemingsmiddel
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Beobachtungsmittel
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Moyen d'observation
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: وسيلة رصد
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Sarana Pengamatan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 观察手段
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Medio de observación
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     aliases:
-    - has_or_had_custodian_observation
-    - has_or_had_observation
-    - has_observation
-    - has_or_had_person_observation
-    - has_person_observation
-    exact_mappings:
-    - ldp:contains
+      - has_or_had_custodian_observation
+      - has_or_had_observation
+      - has_observation
+      - has_or_had_person_observation
+      - has_person_observation
     annotations:
-      custodian_types: '[''*'']'
+      custodian_types: '["*"]'
     comments:
-    - Contains CustodianObservation instances (prov:Entity class)
+      - "Contains CustodianObservation instances (prov:Entity class)."
+      - "MIGRATED 2026-02-03 from has_or_had_custodian_observation for conciseness."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/offer_program.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/offer_program.yaml
index 136e93ea4c..8ec179b47f 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/offer_program.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/offer_program.yaml
@@ -1,35 +1,83 @@
-id: https://nde.nl/ontology/hc/slot/programs_offered
-name: programs_offered_slot
-title: Programs Offered Slot
+# ==============================================================================
+# LinkML Slot Definition: offer_program
+# ==============================================================================
+# Organization provides a structured plan, curriculum, or program.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property                   | File/Line               | Mapping | Notes                                    |
+# |---------------|----------------------------|-------------------------|---------|------------------------------------------|
+# | **Schema.org**| `schema:hasOfferCatalog`   | schemaorg.owl:20356-20380| related | "Indicates an OfferCatalog listing for   |
+# |               |                            |                         |         | Organization, Person, or Service." About |
+# |               |                            |                         |         | offer catalogs, not programs/curricula.  |
+#
+# schema:hasOfferCatalog is about commercial offer listings, not structured
+# educational/cultural programs. Related but distinct concept.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/offer_program
+name: offer_program
+title: Offer Program
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
 default_prefix: hc
+imports:
+  - linkml:types
 slots:
-  programs_offered:
-    description: 'Educational programs offered at this center.
-
-
-      Schema.org: hasOfferCatalog for program listings.
-
-      '
+  offer_program:
+    description: >-
+      To specify that an organization or entity provides a structured plan, curriculum, broadcast schedule, or software package for use or participation.
+    alt_descriptions:
+      nl: >-
+        Specificeert dat een organisatie of entiteit een gestructureerd plan, curriculum, uitzendschema of softwarepakket aanbiedt voor gebruik of deelname.
+      de: >-
+        Gibt an, dass eine Organisation oder Entität einen strukturierten Plan, Lehrplan, Sendeplan oder ein Softwarepaket zur Nutzung oder Teilnahme bereitstellt.
+      fr: >-
+        Spécifie qu'une organisation ou entité fournit un plan structuré, un programme d'études, un calendrier de diffusion ou un logiciel pour utilisation ou participation.
+      ar: >-
+        يحدد أن منظمة أو كياناً يقدم خطة منظمة أو منهجاً دراسياً أو جدول بث أو حزمة برمجية للاستخدام أو المشاركة.
+      id: >-
+        Menentukan bahwa organisasi atau entitas menyediakan rencana terstruktur, kurikulum, jadwal siaran, atau paket perangkat lunak untuk penggunaan atau partisipasi.
+      zh: >-
+        指定组织或实体提供结构化计划、课程、广播时间表或软件包供使用或参与。
+      es: >-
+        Especifica que una organización o entidad proporciona un plan estructurado, plan de estudios, programación de emisión o paquete de software para uso o participación.
+    structured_aliases:
+      - literal_form: Programma-aanbod
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Programmangebot
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Offre de programme
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: عرض برنامج
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Penawaran Program
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 项目提供
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Oferta de programa
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     slot_uri: hc:programsOffered
     aliases:
       - is_or_was_programs_offered
+      - is_or_was_program_activity
+      - program_activity
     annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - hc:programsOffered
+      custodian_types: '["*"]'
+    related_mappings:
+      - schema:hasOfferCatalog  # schemaorg.owl:20356-20380 - commercial offer catalog listings
+    comments:
+      - "Schema.org's hasOfferCatalog relates to commercial offer listings, not structured educational/cultural programs."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/open_on.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/open_on.yaml
deleted file mode 100644
index b50c53c523..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/open_on.yaml
+++ /dev/null
@@ -1,30 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/has_application_opening_date
-name: has_application_opening_date_slot
-title: Has Application Opening Date Slot
-prefixes:
-  hc: https://nde.nl/ontology/hc/
-  linkml: https://w3id.org/linkml/
-  schema: http://schema.org/
-imports:
-  - linkml:types
-default_prefix: hc
-slots:
-  has_application_opening_date:
-    description: >-
-      Date when applications open.
-    range: date
-    slot_uri: schema:startDate
-    aliases:
-      - has_or_had_application_opening_date
-    exact_mappings:
-      - schema:startDate
-    close_mappings:
-      - schema:validFrom
-    annotations:
-      custodian_types: '["*"]'
-      custodian_types_rationale: >-
-        Applicable to all heritage custodian types.
-      custodian_types_primary: M
-      specificity_score: 0.5
-      specificity_rationale: >-
-        Moderately specific slot.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/opened_on.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/opened_on.yaml
deleted file mode 100644
index 371920f673..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/opened_on.yaml
+++ /dev/null
@@ -1,21 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/opened_on
-name: opened_on
-title: opened_on
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  opened_on:
-    name: opened_on
-    title: opened_on
-    description: Date when the entity was opened.
-    slot_uri: hc:openedOn
-    range: date
-    aliases:
-      - is_or_was_opened_on
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/operated_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/operated_by.yaml
index 1fc345deab..a702e79cde 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/operated_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/operated_by.yaml
@@ -1,3 +1,24 @@
+# ==============================================================================
+# LinkML Slot Definition: operated_by
+# ==============================================================================
+# Agent that actively controls, runs, or performs the functions of a device,
+# service, vehicle, or facility.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology   | Property           | File/Line                | Mapping | Notes                                                        |
+# |------------|--------------------|--------------------------|---------|--------------------------------------------------------------|
+# | Schema.org | `schema:provider`  | schemaorg.owl:31484-31510| close   | "The service provider, service operator, or service          |
+# |            |                    |                          |         | performer; the goods producer." Provider makes something     |
+# |            |                    |                          |         | available; operator actively runs/controls it.               |
+#
+# schema:provider is close but not exact: it emphasizes making a service available
+# (provider role), while this slot emphasizes active control/operation. Provider
+# includes goods producers and service performers — broader than operator.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/operated_by
 name: operated_by
 title: operated by
@@ -5,25 +26,58 @@ prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  rico: https://www.ica.org/standards/RiC/ontology#
-  org: http://www.w3.org/ns/org#
-  oa: http://www.w3.org/ns/oa#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   operated_by:
     slot_uri: hc:operatedBy
-    description: 'The agent operating the platform or facility.
-
-
-      MIGRATED 2026-02-03 from is_or_was_operated_by for conciseness.'
+    description: >-
+      Identifies the agent, organization, or system that actively controls, runs, or performs the functions of a device, service, vehicle, or facility.
+    alt_descriptions:
+      nl: >-
+        Identificeert de actor, organisatie of het systeem dat actief de functies van een apparaat, dienst, voertuig of faciliteit bestuurt, beheert of uitvoert.
+      de: >-
+        Identifiziert den Akteur, die Organisation oder das System, das aktiv die Funktionen eines Geräts, Dienstes, Fahrzeugs oder einer Einrichtung steuert, betreibt oder ausführt.
+      fr: >-
+        Identifie l'agent, l'organisation ou le système qui contrôle, exploite ou exécute activement les fonctions d'un appareil, d'un service, d'un véhicule ou d'une installation.
+      ar: >-
+        يحدد الجهة أو المنظمة أو النظام الذي يتحكم أو يدير أو ينفذ بنشاط وظائف جهاز أو خدمة أو مركبة أو منشأة.
+      id: >-
+        Mengidentifikasi agen, organisasi, atau sistem yang secara aktif mengendalikan, menjalankan, atau melaksanakan fungsi perangkat, layanan, kendaraan, atau fasilitas.
+      zh: >-
+        标识主动控制、运行或执行设备、服务、车辆或设施功能的代理人、组织或系统。
+      es: >-
+        Identifica al agente, organización o sistema que controla, opera o ejecuta activamente las funciones de un dispositivo, servicio, vehículo o instalación.
+    structured_aliases:
+      - literal_form: Beheerder
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Betreiber
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Exploitant
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مشغل
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Operator
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 运营者
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Operador
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
     aliases:
-    - is_or_was_operated_by
-    exact_mappings:
-    - schema:provider
+      - is_or_was_operated_by
+    comments:
+      - "MIGRATED 2026-02-03 from is_or_was_operated_by for conciseness."
     annotations:
       custodian_types: '["*"]'
+    close_mappings:
+      - schema:provider  # schemaorg.owl:31484-31510 - "The service provider, service operator, or service performer; the goods producer."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/organized_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/organized_by.yaml
index 789b5992ff..03587313b4 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/organized_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/organized_by.yaml
@@ -1,13 +1,14 @@
 # ==============================================================================
-# LinkML Slot Definition: has_organizer
+# LinkML Slot Definition: organized_by
 # ==============================================================================
-# Agent or organization that organized the event or entity.
+# Person, group, or entity responsible for planning, arrangement, and
+# coordination of an event, competition, or structured system.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
 # | Ontology   | Property            | File/Line               | Mapping | Notes                                           |
 # |------------|---------------------|-------------------------|---------|-------------------------------------------------|
-# | Schema.org | `schema:organizer`  | schemaorg.owl:28512-531 | close   | "An organizer of an Event." Event domain only.  |
+# | Schema.org | `schema:organizer`  | schemaorg.owl:28512-28531 | close   | "An organizer of an Event." Event domain only.  |
 #
 # schema:organizer is Event-specific (domain: Event, range: Person|Organization).
 # This slot is broader: organizer of any entity, not just events.
@@ -15,9 +16,9 @@
 # CREATED: 2026-02-07
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_organizer
-name: has_organizer
-title: has_organizer
+id: https://nde.nl/ontology/hc/slot/organized_by
+name: organized_by
+title: organized_by
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -26,27 +27,27 @@ imports:
   - linkml:types
 default_prefix: hc
 slots:
-  has_organizer:
-    name: has_organizer
-    title: has_organizer
-    slot_uri: hc:hasOrganizer
+  organized_by:
+    name: organized_by
+    title: organized by
+    slot_uri: hc:organizedBy
     description: >-
-      Agent or organization that organized the event or entity.
+      Identifies the person, group, or entity responsible for the planning, arrangement, and coordination of an event, competition, or structured system.
     alt_descriptions:
       nl: >-
-        Agent of organisatie die het evenement of de entiteit heeft georganiseerd.
+        Identificeert de persoon, groep of entiteit die verantwoordelijk is voor de planning, inrichting en coördinatie van een evenement, wedstrijd of gestructureerd systeem.
       de: >-
-        Akteur oder Organisation, die das Ereignis oder die Entität organisiert hat.
+        Identifiziert die Person, Gruppe oder Entität, die für die Planung, Organisation und Koordination eines Ereignisses, Wettbewerbs oder strukturierten Systems verantwortlich ist.
       fr: >-
-        Agent ou organisation qui a organisé l'événement ou l'entité.
+        Identifie la personne, le groupe ou l'entité responsable de la planification, de l'organisation et de la coordination d'un événement, d'une compétition ou d'un système structuré.
       ar: >-
-        الجهة أو المنظمة التي نظمت الحدث أو الكيان.
+        يحدد الشخص أو المجموعة أو الكيان المسؤول عن التخطيط والترتيب والتنسيق لحدث أو مسابقة أو نظام منظم.
       id: >-
-        Agen atau organisasi yang menyelenggarakan acara atau entitas.
+        Mengidentifikasi orang, kelompok, atau entitas yang bertanggung jawab atas perencanaan, pengaturan, dan koordinasi acara, kompetisi, atau sistem terstruktur.
       zh: >-
-        组织该活动或实体的代理人或组织。
+        标识负责规划、安排和协调活动、竞赛或结构化系统的个人、团体或实体。
       es: >-
-        Agente u organización que organizó el evento o la entidad.
+        Identifica a la persona, grupo o entidad responsable de la planificación, organización y coordinación de un evento, competición o sistema estructurado.
     structured_aliases:
       - literal_form: Organisator
         predicate: EXACT_SYNONYM
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/originate.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/originate.yaml
deleted file mode 100644
index 7d62f0494a..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/originate.yaml
+++ /dev/null
@@ -1,113 +0,0 @@
-# ==============================================================================
-# LinkML Slot Definition: originate
-# ==============================================================================
-# To have a specified beginning or provenance, arising from a particular source,
-# location, cause, or starting point.
-#
-# ONTOLOGY ALIGNMENT (verified against data/ontology/):
-#
-# | Ontology      | Property              | File/Line            | Mapping | Notes                              |
-# |---------------|-----------------------|----------------------|---------|------------------------------------|
-# | **PROV-O**    | `prov:atLocation`     | prov.ttl:501-510     | slot_uri| Location at which event occurred   |
-# | **PROV-O**    | `prov:atLocation`     | prov.ttl:501-510     | exact   | Same as slot_uri                   |
-#
-# HIERARCHY: prov:atLocation has no rdfs:subPropertyOf declaration
-# (per prov.ttl:501 editorial note: naming parallels prov:atTime)
-#
-# CREATED: 2026-01-20
-# UPDATED: 2026-02-03 - Added header documentation
-# ==============================================================================
-
-id: https://nde.nl/ontology/hc/slot/originate
-name: originate
-title: originate
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  originate:
-    name: originate
-    description: >-
-      To have a specified beginning or provenance, arising from a particular
-      source, location, cause, or starting point.
-    alt_descriptions:
-      nl: >-
-        Om een bepaald begin of herkomst te hebben, voortkomend uit een
-        specifieke bron, locatie, oorzaak of startpunt.
-      de: >-
-        Einen bestimmten Anfang oder eine Herkunft zu haben, die aus einer
-        bestimmten Quelle, einem Ort, einer Ursache oder einem Ausgangspunkt
-        hervorgeht.
-      fr: >-
-        Avoir un début ou une provenance spécifique, découlant d'une source,
-        d'un lieu, d'une cause ou d'un point de départ particulier.
-      ar: >-
-        أن يكون له بداية أو مصدر محدد، ناشئ من مصدر أو موقع أو سبب أو
-        نقطة انطلاق معينة.
-      id: >-
-        Memiliki awal atau asal-usul tertentu, berasal dari sumber, lokasi,
-        penyebab, atau titik awal tertentu.
-      zh: >-
-        具有特定的起始或来源，源自特定的来源、位置、原因或起点。
-      es: >-
-        Tener un comienzo o procedencia especificado, surgiendo de una fuente,
-        ubicación, causa o punto de partida particular.
-    structured_aliases:
-      - literal_form: herkomst
-        predicate: EXACT_SYNONYM
-      - literal_form: is_or_was_originate
-        predicate: EXACT_SYNONYM
-        in_language: nl
-      - literal_form: Ursprung
-        predicate: EXACT_SYNONYM
-        in_language: de
-      - literal_form: origine
-        predicate: EXACT_SYNONYM
-        in_language: fr
-      - literal_form: مصدر
-        predicate: EXACT_SYNONYM
-        in_language: ar
-      - literal_form: asal
-        predicate: EXACT_SYNONYM
-        in_language: id
-      - literal_form: 起源
-        predicate: EXACT_SYNONYM
-        in_language: zh
-      - literal_form: origen
-        predicate: EXACT_SYNONYM
-        in_language: es
-    slot_uri: prov:atLocation
-    range: string # uriorcurie
-    multivalued: false
-    annotations:
-      custodian_types: '["*"]'
-    exact_mappings:
-    - prov:atLocation
-    aliases:
-    - has_or_had_origin
-      - is_or_was_originate
-    comments:
-    - MIGRATED from from_location per Rule 53. Follows RiC-O naming convention.
-    - Updated 2026-02-03 with header documentation
-    - |
-      **ONTOLOGY ALIGNMENT** (verified against data/ontology/):
-
-      | Ontology | Property | Line | Mapping | Notes |
-      |----------|----------|------|---------|-------|
-      | **PROV-O** | `prov:atLocation` | 501-510 | slot_uri/exact | Location of event |
-    - |
-      **PROV-O USAGE NOTE**:
-      prov:atLocation is used to specify the location at which an Activity,
-      Generation, Usage, or other Influence occurred. It does NOT have an
-      rdfs:subPropertyOf hierarchy - the naming parallels prov:atTime.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/originate_from.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/originate_from.yaml
index 7790dadc3b..735c134e12 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/originate_from.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/originate_from.yaml
@@ -1,14 +1,15 @@
 # ==============================================================================
-# LinkML Slot Definition: has_origin
+# LinkML Slot Definition: originate_from
 # ==============================================================================
-# Origin or source of the entity.
+# Source, location, ancestor, or starting point from which an entity, idea,
+# or object is derived or comes into existence.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
 # | Ontology | Property               | File/Line      | Mapping | Notes                                                   |
 # |----------|------------------------|----------------|---------|---------------------------------------------------------|
-# | PROV-O   | `prov:hadPrimarySource` | prov.ttl:661-74| close   | "Aims to give credit to the source that originated some |
-# |          |                        |                |         | information." Derivation-specific, Entity→Entity.       |
+# | PROV-O   | `prov:hadPrimarySource` | prov.ttl:661-674 | close   | "Aims to give credit to the source that originated some |
+# |          |                        |                  |         | information." Derivation-specific, Entity→Entity.       |
 #
 # prov:hadPrimarySource is specifically about information provenance and derivation.
 # This slot is broader: origin of any entity, not just information derivation chains.
@@ -16,9 +17,9 @@
 # CREATED: 2026-02-07
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_origin
-name: has_origin
-title: has_origin
+id: https://nde.nl/ontology/hc/slot/originate_from
+name: originate_from
+title: originate_from
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -27,27 +28,27 @@ imports:
   - linkml:types
 default_prefix: hc
 slots:
-  has_origin:
-    name: has_origin
-    title: has_origin
-    slot_uri: hc:hasOrigin
+  originate_from:
+    name: originate_from
+    title: originate_from
+    slot_uri: hc:originateFrom
     description: >-
-      Origin or source of the entity.
+      Identifies the source, location, ancestor, or starting point from which an entity, idea, or object is derived or comes into existence.
     alt_descriptions:
       nl: >-
-        Oorsprong of bron van de entiteit.
+        Identificeert de bron, locatie, voorouder of het uitgangspunt waarvan een entiteit, idee of object is afgeleid of tot bestaan komt.
       de: >-
-        Ursprung oder Quelle der Entität.
+        Identifiziert die Quelle, den Ort, den Vorfahren oder den Ausgangspunkt, von dem eine Entität, Idee oder ein Objekt abgeleitet wird oder entsteht.
       fr: >-
-        Origine ou source de l'entité.
+        Identifie la source, le lieu, l'ancêtre ou le point de départ à partir duquel une entité, une idée ou un objet est dérivé ou vient à l'existence.
       ar: >-
-        أصل أو مصدر الكيان.
+        يحدد المصدر أو الموقع أو السلف أو نقطة البداية التي يُشتق منها كيان أو فكرة أو شيء أو يأتي إلى الوجود.
       id: >-
-        Asal atau sumber entitas.
+        Mengidentifikasi sumber, lokasi, leluhur, atau titik awal dari mana suatu entitas, ide, atau objek berasal atau muncul ke dalam keberadaan.
       zh: >-
-        实体的来源或起源。
+        标识实体、思想或对象从中衍生或产生的来源、位置、祖先或起点。
       es: >-
-        Origen o fuente de la entidad.
+        Identifica la fuente, ubicación, ancestro o punto de partida del cual una entidad, idea u objeto se deriva o llega a existir.
     structured_aliases:
       - literal_form: Oorsprong
         predicate: EXACT_SYNONYM
@@ -73,6 +74,8 @@ slots:
     range: string  # uriorcurie
     aliases:
       - has_or_had_origin
+      - is_or_was_originate
+      - originate
     annotations:
       custodian_types: '["*"]'
     close_mappings:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/part_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/part_of.yaml
index 4eab880c95..756dc08815 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/part_of.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/part_of.yaml
@@ -1,23 +1,85 @@
+# ==============================================================================
+# LinkML Slot Definition: part_of
+# ==============================================================================
+# Entity functions as a constituent element, component, or piece of a larger
+# whole, object, or system.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology   | Property                 | File/Line                | Mapping | Notes                                                          |
+# |------------|--------------------------|--------------------------|---------|----------------------------------------------------------------|
+# | DCTerms    | `dcterms:isPartOf`       | dcterms.rdf:1464-1485    | close   | "A related resource in which the described resource is          |
+# |            |                          |                          |         | physically or logically included." Resource-focused.            |
+# | Schema.org | `schema:isPartOf`        | schemaorg.owl:22926-22949| close   | "Indicates an item or CreativeWork that this item, event, or    |
+# |            |                          |                          |         | creative work is part of." CreativeWork domain.                 |
+# | RiC-O      | `rico:isOrWasIncludedIn` | RiC-O_1-1.rdf:13802-13845| close  | "Connects a Record or Record Set to a Record Set it is or was  |
+# |            |                          |                          |         | included in." Record/RecordSet domain.                          |
+#
+# All three are close but not exact: dcterms:isPartOf is resource-focused,
+# schema:isPartOf has a CreativeWork domain, and rico:isOrWasIncludedIn is
+# restricted to Record/RecordSet. This slot is entity-general.
+#
+# Note: Distinguished from `included_in` — `part_of` implies constituent
+# elements/components; `included_in` implies logical inclusion in a set.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/part_of
 name: part_of
-title: part_of
+title: part of
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
   dcterms: http://purl.org/dc/terms/
-  skos: http://www.w3.org/2004/02/skos/core#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
+  rico: https://www.ica.org/standards/RiC/ontology#
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   part_of:
-    name: part_of
-    title: part_of
-    description: The larger entity of which this entity is a part.
     slot_uri: hc:partOf
-    range: string # uriorcurie
+    description: >-
+      Indicates that an entity functions as a constituent element, component, or piece of a larger whole, object, or system.
+    alt_descriptions:
+      nl: >-
+        Geeft aan dat een entiteit functioneert als een bestanddeel, component of onderdeel van een groter geheel, object of systeem.
+      de: >-
+        Gibt an, dass eine Entität als Bestandteil, Komponente oder Teil eines größeren Ganzen, Objekts oder Systems fungiert.
+      fr: >-
+        Indique qu'une entité fonctionne comme un élément constitutif, un composant ou une pièce d'un ensemble, objet ou système plus vaste.
+      ar: >-
+        يشير إلى أن كيانًا يعمل كعنصر مكوّن أو مكون أو جزء من كلٍّ أو كائن أو نظام أكبر.
+      id: >-
+        Menunjukkan bahwa suatu entitas berfungsi sebagai elemen konstituen, komponen, atau bagian dari keseluruhan, objek, atau sistem yang lebih besar.
+      zh: >-
+        表示一个实体作为更大整体、对象或系统的组成元素、组件或部分而发挥作用。
+      es: >-
+        Indica que una entidad funciona como un elemento constituyente, componente o pieza de un todo, objeto o sistema más grande.
+    structured_aliases:
+      - literal_form: Onderdeel
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Bestandteil
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Partie
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: جزء
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Bagian
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 部分
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Parte
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_part_of
       - is_or_was_suborganization_of
@@ -29,6 +91,7 @@ slots:
       - part_of_archive_series
     annotations:
       custodian_types: '["*"]'
-    exact_mappings:
-    - dcterms:isPartOf
-    - schema:isPartOf
+    close_mappings:
+      - dcterms:isPartOf  # dcterms.rdf:1464-1485 - "A related resource in which the described resource is physically or logically included."
+      - schema:isPartOf  # schemaorg.owl:22926-22949 - "Indicates an item or CreativeWork that this item is part of."
+      - rico:isOrWasIncludedIn  # RiC-O_1-1.rdf:13802-13845 - "Connects a Record or Record Set to a Record Set it is or was included in."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/platform_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/platform_of.yaml
deleted file mode 100644
index 1a8b50c5da..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/platform_of.yaml
+++ /dev/null
@@ -1,69 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/platform_of
-name: platform_of
-title: platform of
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  rico: https://www.ica.org/standards/RiC/ontology#
-  org: http://www.w3.org/ns/org#
-  oa: http://www.w3.org/ns/oa#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  platform_of:
-    slot_uri: hc:platformOf
-    description: 'The custodian that operates or operated this digital platform.
-
-
-      **RiC-O Temporal Pattern**: Uses `isOrWas*` pattern because platform
-
-      ownership and operation can change over time:
-
-      - Platform transferred to new operator
-
-      - Platform spun off as independent entity
-
-      - Platform decommissioned and archived
-
-      - Platform acquired by consortium
-
-
-      **Example**:
-
-      A discovery portal may have been operated by one institution
-
-      but later transferred to a consortium or national body.
-
-
-
-      MIGRATED 2026-02-03 from is_or_was_platform_of for conciseness.'
-    range: string
-    multivalued: true
-    aliases:
-    - is_or_was_platform_of
-    close_mappings:
-    - dcterms:isPartOf
-    - rico:isOrWasPartOf
-    annotations:
-      inverse_slot: has_or_had_digital_platform
-      deprecates: platform_of
-      rico_pattern: isOrWasPartOf
-      custodian_types: '["*"]'
-    examples:
-    - value: "DigitalPlatform:\n  platform_name: \"Rijksstudio\"\n  platform_url:\
-        \ \"https://www.rijksmuseum.nl/rijksstudio\"\n  is_or_was_platform_of: \"\
-        https://nde.nl/ontology/hc/nl-nh-ams-m-rm\"\n"
-      description: Rijksstudio platform operated by Rijksmuseum
-    comments:
-    - 'RiC-O pattern: isOrWas* for temporal ownership relationships'
-    - Inverse of has_or_had_digital_platform
-    - Links platform back to its operating custodian(s)
-    - Creates owl:inverseOf axiom in RDF output
-    - 'Inverse: `has_or_had_digital_platform` | Pattern: If Custodian has_or_had_digital_platform
-      Platform, then Platform is_or_was_platform_of Custodian'
-    - 'Navigation: From platform: Find owning custodian (is_or_was_platform_of) |
-      From custodian: Find digital platforms (has_or_had_digital_platform)'
-    - 'Deprecates: platform_of (non-temporal naming)'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/position.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/position.yaml
deleted file mode 100644
index 38e48d338d..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/position.yaml
+++ /dev/null
@@ -1,21 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/position
-name: position
-title: position
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-- linkml:types
-slots:
-  position:
-    name: position
-    title: position
-    description: Position or role held by the entity.
-    slot_uri: hc:position
-    range: string # uriorcurie
-    aliases:
-      - is_or_was_position
-    annotations:
-      custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/program_activity.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/program_activity.yaml
deleted file mode 100644
index 6ca589ef11..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/program_activity.yaml
+++ /dev/null
@@ -1,64 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/program_activity
-name: program_activity_slot
-title: Program Activities Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  program_activity:
-    description: 'Specific programs and activities the organization implements.
-
-
-      Describes concrete actions the NGO undertakes:
-
-      - **Advocacy campaigns**: Specific policy initiatives, petitions, awareness drives
-
-      - **Grant programs**: Funding schemes, eligibility criteria, award amounts
-
-      - **Training programs**: Workshops, courses, certifications, mentorships
-
-      - **Publications**: Journals, newsletters, handbooks, toolkits, websites
-
-      - **Events**: Conferences, symposia, heritage days, award ceremonies
-
-      - **Awards and recognition**: Prizes, certifications, heritage labels
-
-      - **Research projects**: Commissioned studies, pilot projects, evaluations
-
-      - **Technical assistance**: On-site consulting, conservation advice, planning support
-
-
-      Activities demonstrate how the organization achieves its mission.
-
-
-      Examples:
-
-      - "7 Most Endangered Programme, European Heritage Awards, Advocacy campaigns"
-
-      - "Annual grants to 50+ heritage projects, Emergency funding, Scholarships"
-
-      - "Conservation training workshops, Digital skills courses, Webinar series"
-
-      - "Annual conference, Regional meetings, Heritage rescue operations"
-
-      '
-    range: string
-    slot_uri: schema:knows
-    aliases:
-      - is_or_was_program_activity
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - schema:knows
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/programme_period.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/programme_period.yaml
deleted file mode 100644
index 1511079e2a..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/programme_period.yaml
+++ /dev/null
@@ -1,88 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/programme_period
-name: programme_period_slot
-title: Programme Period Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  programme_period:
-    slot_uri: schema:temporalCoverage
-    range: string # uriorcurie
-    aliases:
-      - is_or_was_programme_period
-    # range: TimeSpan
-    description: 'The temporal period during which a funding programme operates.
-
-
-      Many EU and national funding programmes have defined programming periods
-
-      (e.g., Horizon Europe 2021-2027, Creative Europe 2021-2027). This slot
-
-      captures the programme''s temporal extent using CIDOC-CRM TimeSpan pattern.
-
-
-      **Use Cases**:
-
-      - EU Framework Programmes (7-year cycles)
-
-      - National funding programme periods
-
-      - Time-limited grant schemes
-
-      - Historical funding programmes (closed)
-
-
-      **TimeSpan Mapping**:
-
-      For programmes with precise dates (common for EU programmes):
-
-      - Set begin_of_the_begin = end_of_the_begin (exact start)
-
-      - Set begin_of_the_end = end_of_the_end (exact end)
-
-
-      For ongoing programmes with uncertain end:
-
-      - Set begin_of_the_begin/end_of_the_begin (start date)
-
-      - Leave end dates null
-
-
-      **Examples**:
-
-      - Horizon Europe: 2021-01-01 to 2027-12-31
-
-      - Creative Europe: 2021-01-01 to 2027-12-31
-
-      - Digital Europe: 2021-01-01 to 2027-12-31
-
-      - Mondriaan Fund: No fixed end (ongoing, leave end null)
-
-      '
-    examples:
-    - value:
-        begin_of_the_begin: '2021-01-01T00:00:00Z'
-        end_of_the_begin: '2021-01-01T00:00:00Z'
-        begin_of_the_end: '2027-12-31T23:59:59Z'
-        end_of_the_end: '2027-12-31T23:59:59Z'
-      description: Horizon Europe 2021-2027 programming period
-    - value:
-        begin_of_the_begin: '1994-01-01T00:00:00Z'
-        end_of_the_begin: '1994-01-01T00:00:00Z'
-      description: Mondriaan Fund - ongoing since 1994 (no end date)
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - schema:temporalCoverage
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/programme_year.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/programme_year.yaml
deleted file mode 100644
index 45927b1ce5..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/programme_year.yaml
+++ /dev/null
@@ -1,29 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/programme_year
-name: programme_year_slot
-title: Programme Year Slot
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  programme_year:
-    range: integer
-    description: Programme year or funding cycle
-    slot_uri: hc:programmeYear
-    aliases:
-      - is_or_was_programme_year
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - hc:programmeYear
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/publish.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/publish.yaml
index 29585e1713..5423a640f7 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/publish.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/publish.yaml
@@ -1,19 +1,23 @@
 # ==============================================================================
 # LinkML Slot Definition: publish
 # ==============================================================================
-# Publication series name or output identifier.
+# Act of making a creative work, data set, or information resource available
+# to the public, formally releasing it for consumption or use.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
-# | Ontology      | Property              | File/Line               | Mapping | Notes                              |
-# |---------------|-----------------------|-------------------------|---------|------------------------------------|
-# | **DCTerms**   | `dcterms:title`       | dcterms.rdf             | close   | Title of resource                  |
-# | **SKOS**      | `skos:prefLabel`      | skos.rdf                | related | Preferred label - more general     |
+# | Ontology   | Property             | File/Line                | Mapping | Notes                                                         |
+# |------------|----------------------|--------------------------|---------|---------------------------------------------------------------|
+# | DCTerms    | `dcterms:publisher`  | dcterms.rdf:1761-1779    | related | "An entity responsible for making the resource available."     |
+# |            |                      |                          |         | Identifies the publisher agent, not the act of publishing.     |
+# | Schema.org | `schema:publisher`   | schemaorg.owl:31710-31733| related | "The publisher of the creative work." Identifies publisher     |
+# |            |                      |                          |         | agent. Domain: CreativeWork.                                   |
 #
-# Note: This slot captures publication series names/outputs, not the act of
-# publishing. dcterms:title is close but not exact as it's more general.
+# dcterms:publisher and schema:publisher identify the agent responsible for
+# publishing, not the act of publishing itself. Related but different concept.
 #
 # CREATED: 2026-02-04
+# UPDATED: 2026-02-08
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/publish
@@ -22,75 +26,54 @@ title: Publish
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  skos: http://www.w3.org/2004/02/skos/core#
   dcterms: http://purl.org/dc/terms/
   schema: http://schema.org/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
   - linkml:types
+default_prefix: hc
 slots:
   publish:
     slot_uri: hc:publish
     description: >-
-      Publication series name or output identifier for content, documents,
-      or data made available to the public or a specific audience.
+      Signifies the act of making a creative work, data set, or information resource available to the public, formally releasing it for consumption or use.
     alt_descriptions:
       nl: >-
-        Naam van de publicatiereeks of uitvoeridentificatie voor inhoud,
-        documenten of gegevens die beschikbaar zijn gesteld aan het publiek
-        of een specifiek publiek.
+        Duidt de handeling aan van het beschikbaar stellen van een creatief werk, dataset of informatiebron aan het publiek, door het formeel vrij te geven voor gebruik of consumptie.
       de: >-
-        Name der Publikationsreihe oder Ausgabekennung für Inhalte, Dokumente
-        oder Daten, die der Öffentlichkeit oder einem bestimmten Publikum
-        zugänglich gemacht werden.
+        Bezeichnet den Akt der Veröffentlichung eines kreativen Werks, Datensatzes oder einer Informationsressource für die Öffentlichkeit, indem es formell zur Nutzung oder zum Verbrauch freigegeben wird.
       fr: >-
-        Nom de la série de publication ou identifiant de sortie pour le
-        contenu, les documents ou les données mis à disposition du public
-        ou d'un public spécifique.
+        Désigne l'acte de rendre une œuvre créative, un jeu de données ou une ressource d'information accessible au public, en le publiant formellement pour la consommation ou l'utilisation.
       ar: >-
-        اسم سلسلة النشر أو معرف الإخراج للمحتوى أو المستندات أو البيانات
-        المتاحة للجمهور أو لجمهور محدد.
+        يدل على فعل إتاحة عمل إبداعي أو مجموعة بيانات أو مورد معلوماتي للجمهور، وإصداره رسمياً للاستهلاك أو الاستخدام.
       id: >-
-        Nama seri publikasi atau pengidentifikasi keluaran untuk konten,
-        dokumen, atau data yang tersedia untuk publik atau audiens tertentu.
+        Menandakan tindakan menjadikan karya kreatif, kumpulan data, atau sumber informasi tersedia untuk publik, secara resmi merilisnya untuk konsumsi atau penggunaan.
       zh: >-
-        出版系列名称或输出标识符，用于向公众或特定受众提供的内容、文档或数据。
+        表示将创意作品、数据集或信息资源公开发布、正式发行供消费或使用的行为。
       es: >-
-        Nombre de la serie de publicación o identificador de salida para
-        contenido, documentos o datos disponibles para el público o una
-        audiencia específica.
+        Significa el acto de poner a disposición del público una obra creativa, un conjunto de datos o un recurso de información, liberándolo formalmente para su consumo o uso.
     structured_aliases:
-      - literal_form: publiceren
+      - literal_form: Publicatie
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: veröffentlichen
+      - literal_form: Veröffentlichung
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: publier
+      - literal_form: Publication
         predicate: EXACT_SYNONYM
         in_language: fr
       - literal_form: نشر
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: menerbitkan
+      - literal_form: Penerbitan
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 发布
+      - literal_form: 出版
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: publicar
+      - literal_form: Publicación
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
-    close_mappings:
-      - dcterms:title
-    related_mappings:
-      - skos:prefLabel
     aliases:
       - is_or_was_publication_series_name
       - is_or_was_publication_output
@@ -100,3 +83,6 @@ slots:
       custodian_types_primary: L
       specificity_score: 0.5
       specificity_rationale: Publication metadata slot.
+    related_mappings:
+      - dcterms:publisher  # dcterms.rdf:1761-1779 - "An entity responsible for making the resource available."
+      - schema:publisher  # schemaorg.owl:31710-31733 - "The publisher of the creative work."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/published.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/published.yaml
deleted file mode 100644
index 18f3dae3eb..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/published.yaml
+++ /dev/null
@@ -1,95 +0,0 @@
-# ==============================================================================
-# LinkML Slot Definition: published
-# ==============================================================================
-# Publication status or date of an entity.
-#
-# ONTOLOGY ALIGNMENT (verified against data/ontology/):
-#
-# | Ontology      | Property                   | File/Line               | Mapping | Notes                              |
-# |---------------|----------------------------|-------------------------|---------|------------------------------------|
-# | **Schema.org**| `schema:datePublished`     | schemaorg.owl:14278-14295| exact   | "Date of first publication or      |
-# |               |                            |                         |         | broadcast."                        |
-# | **DCTerms**   | `dcterms:issued`           | dcterms.rdf             | close   | Date of formal issuance            |
-#
-# CREATED: 2026-02-03
-# UPDATED: 2026-02-04 - Added multilingual support
-# ==============================================================================
-
-id: https://nde.nl/ontology/hc/slot/published
-name: published
-title: Published
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
-imports:
-  - linkml:types
-slots:
-  published:
-    slot_uri: schema:datePublished
-    description: >-
-      The date when an entity was officially issued, released, or made
-      available to the public.
-    alt_descriptions:
-      nl: >-
-        De datum waarop een entiteit officieel werd uitgegeven, vrijgegeven
-        of beschikbaar gesteld aan het publiek.
-      de: >-
-        Das Datum, an dem eine Entität offiziell herausgegeben, veröffentlicht
-        oder der Öffentlichkeit zugänglich gemacht wurde.
-      fr: >-
-        La date à laquelle une entité a été officiellement émise, publiée
-        ou mise à disposition du public.
-      ar: >-
-        التاريخ الذي تم فيه إصدار الكيان رسميًا أو نشره أو إتاحته للجمهور.
-      id: >-
-        Tanggal ketika suatu entitas secara resmi diterbitkan, dirilis,
-        atau tersedia untuk publik.
-      zh: >-
-        实体正式发布、发行或向公众提供的日期。
-      es: >-
-        La fecha en que una entidad fue oficialmente emitida, publicada
-        o puesta a disposición del público.
-    structured_aliases:
-      - literal_form: gepubliceerd
-        predicate: EXACT_SYNONYM
-        in_language: nl
-      - literal_form: veröffentlicht
-        predicate: EXACT_SYNONYM
-        in_language: de
-      - literal_form: publié
-        predicate: EXACT_SYNONYM
-        in_language: fr
-      - literal_form: منشور
-        predicate: EXACT_SYNONYM
-        in_language: ar
-      - literal_form: diterbitkan
-        predicate: EXACT_SYNONYM
-        in_language: id
-      - literal_form: 已发布
-        predicate: EXACT_SYNONYM
-        in_language: zh
-      - literal_form: publicado
-        predicate: EXACT_SYNONYM
-        in_language: es
-    range: string
-    multivalued: false
-    exact_mappings:
-      - schema:datePublished  # schemaorg.owl:14278-14295
-    close_mappings:
-      - dcterms:issued
-    aliases:
-      - is_or_was_published
-    annotations:
-      custodian_types: '["*"]'
-      custodian_types_rationale: Applicable to all heritage custodian types.
-      custodian_types_primary: L
-      specificity_score: 0.4
-      specificity_rationale: Standard publication date slot.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/published_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/published_at.yaml
index e856a1c63a..ddcc1f181b 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/published_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/published_at.yaml
@@ -1,19 +1,23 @@
 # ==============================================================================
 # LinkML Slot Definition: published_at
 # ==============================================================================
-# The location or endpoint where an entity is published.
+# Specific venue, platform, URL, or physical location where a work, document,
+# or dataset is formally released or made available.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
-# | Ontology      | Property              | File/Line               | Mapping | Notes                              |
-# |---------------|-----------------------|-------------------------|---------|------------------------------------|
-# | **DCAT**      | `dcat:endpointURL`    | dcat3.ttl               | close   | Data publication endpoint          |
-# | **Schema.org**| `schema:url`          | schemaorg.owl           | related | URL of item - more general         |
+# | Ontology   | Property            | File/Line          | Mapping | Notes                                                       |
+# |------------|---------------------|--------------------|---------|-------------------------------------------------------------|
+# | DCAT       | `dcat:endpointURL`  | dcat3.ttl:1008-1030| close   | "The root location or primary endpoint of the service."     |
+# |            |                     |                    |         | Domain: DataService. Data service endpoint only.            |
+# | Schema.org | `schema:url`        | schemaorg.owl:39120-39140| related | "URL of the item." General URL of any Thing.           |
 #
-# This slot captures publication location/endpoint, which may be a URL,
-# dashboard, or analytics platform.
+# dcat:endpointURL is close but limited to DataService endpoints.
+# schema:url is related — it's the general URL of any item, not specifically
+# the publication location.
 #
 # CREATED: 2026-02-04
+# UPDATED: 2026-02-08
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/published_at
@@ -23,78 +27,65 @@ prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
   dcat: http://www.w3.org/ns/dcat#
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
   - linkml:types
+default_prefix: hc
 slots:
   published_at:
-    slot_uri: hc:publishesTo
+    slot_uri: hc:publishesAt
     description: >-
-      The location or endpoint where the entity is published or issued.
+      Identifies the specific venue, platform, URL, or physical location where a work, document, or dataset is formally released or made available.
     alt_descriptions:
       nl: >-
-        De locatie of het eindpunt waar de entiteit wordt gepubliceerd of
-        uitgegeven.
+        Identificeert de specifieke locatie, het platform, de URL of de fysieke plaats waar een werk, document of dataset formeel wordt vrijgegeven of beschikbaar gesteld.
       de: >-
-        Der Ort oder Endpunkt, an dem die Entität veröffentlicht oder
-        herausgegeben wird.
+        Identifiziert den spezifischen Veranstaltungsort, die Plattform, die URL oder den physischen Ort, an dem ein Werk, Dokument oder Datensatz formell veröffentlicht oder verfügbar gemacht wird.
       fr: >-
-        L'emplacement ou le point de terminaison où l'entité est publiée
-        ou émise.
+        Identifie le lieu, la plateforme, l'URL ou l'emplacement physique spécifique où une œuvre, un document ou un jeu de données est formellement publié ou mis à disposition.
       ar: >-
-        الموقع أو نقطة النهاية حيث يتم نشر الكيان أو إصداره.
+        يحدد المكان أو المنصة أو عنوان URL أو الموقع الفعلي المحدد الذي يتم فيه إصدار عمل أو مستند أو مجموعة بيانات رسمياً أو إتاحتها.
       id: >-
-        Lokasi atau titik akhir di mana entitas dipublikasikan atau
-        diterbitkan.
+        Mengidentifikasi tempat, platform, URL, atau lokasi fisik tertentu di mana suatu karya, dokumen, atau kumpulan data secara resmi dirilis atau disediakan.
       zh: >-
-        实体发布或发行的位置或端点。
+        标识作品、文档或数据集正式发布或可用的具体场所、平台、URL或物理位置。
       es: >-
-        La ubicación o punto final donde se publica o emite la entidad.
+        Identifica el lugar, plataforma, URL o ubicación física específica donde una obra, documento o conjunto de datos se publica formalmente o se pone a disposición.
     structured_aliases:
-      - literal_form: gepubliceerd op
+      - literal_form: Publicatielocatie
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: veröffentlicht bei
+      - literal_form: Veröffentlichungsort
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: publié à
+      - literal_form: Lieu de publication
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: منشور في
+      - literal_form: مكان النشر
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: dipublikasikan di
+      - literal_form: Lokasi publikasi
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 发布于
+      - literal_form: 发布位置
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: publicado en
+      - literal_form: Lugar de publicación
         predicate: EXACT_SYNONYM
         in_language: es
     range: uri
-    close_mappings:
-      - dcat:endpointURL
-    related_mappings:
-      - schema:url
     aliases:
       - is_or_was_publishes_to
       - is_or_was_publication_place
     comments:
-      - |
-        **USAGE**: For sensors, this may be a monitoring dashboard.
-        For beacons, this may be an analytics platform.
+      - "USAGE: For sensors, this may be a monitoring dashboard. For beacons, this may be an analytics platform."
     annotations:
       custodian_types: '["*"]'
       custodian_types_rationale: Applicable to all heritage custodian types.
       custodian_types_primary: M
       specificity_score: 0.5
       specificity_rationale: Publication location slot.
+    close_mappings:
+      - dcat:endpointURL  # dcat3.ttl:1008-1030 - "The root location or primary endpoint of the service." Domain: DataService.
+    related_mappings:
+      - schema:url  # schemaorg.owl:39120-39140 - "URL of the item." General URL of any Thing.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/published_on.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/published_on.yaml
index 6ee5538873..437cd2b298 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/published_on.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/published_on.yaml
@@ -1,5 +1,5 @@
 # ==============================================================================
-# LinkML Slot Definition: has_publication_date
+# LinkML Slot Definition: published_on
 # ==============================================================================
 # Date when an entity was published.
 #
@@ -8,14 +8,14 @@
 # | Ontology      | Property                  | File/Line                | Mapping | Notes                                          |
 # |---------------|---------------------------|--------------------------|---------|------------------------------------------------|
 # | **Schema.org**| `schema:datePublished`    | schemaorg.owl:14278-14300| close   | Domain: CreativeWork/Certification only.       |
-# | **DCTerms**   | `dcterms:date`            | dcterms.rdf (standard)   | broad   | Any date associated with a resource.           |
+# | **DCTerms**   | `dcterms:date`            | dcterms.rdf:1122-1140     | broad   | Any date associated with a resource.           |
 #
 # CREATED: 2026-02-07
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_publication_date
-name: has_publication_date
-title: Has Publication Date
+id: https://nde.nl/ontology/hc/slot/published_on
+name: published_on
+title: Published On
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
@@ -25,68 +25,56 @@ imports:
   - linkml:types
 default_prefix: hc
 slots:
-  has_publication_date:
-    slot_uri: hc:hasPublicationDate
+  published_on:
+    slot_uri: hc:publishedOn
     description: >-
-      Date when an entity was published or made publicly available, such as the
-      release date of a report, dataset, catalogue, or digital resource produced
-      by a heritage institution.
+      To specify the calendar date on which a creative work, document, or software version is officially released or made public.
     alt_descriptions:
       nl: >-
-        Datum waarop een entiteit is gepubliceerd of publiek beschikbaar is gesteld,
-        zoals de verschijningsdatum van een rapport, dataset, catalogus of digitale
-        bron geproduceerd door een erfgoedinstelling.
+        Specificeert de kalenderdatum waarop een creatief werk, document of softwareversie officieel wordt vrijgegeven of openbaar gemaakt.
       de: >-
-        Datum, an dem eine Entität veröffentlicht oder öffentlich verfügbar gemacht
-        wurde, wie das Erscheinungsdatum eines Berichts, Datensatzes, Katalogs oder
-        einer digitalen Ressource einer Kulturerbeeinrichtung.
+        Gibt das Kalenderdatum an, an dem ein kreatives Werk, Dokument oder eine Softwareversion offiziell veröffentlicht oder öffentlich gemacht wird.
       fr: >-
-        Date à laquelle une entité a été publiée ou rendue publiquement disponible,
-        comme la date de parution d'un rapport, jeu de données, catalogue ou
-        ressource numérique produite par une institution patrimoniale.
+        Spécifie la date calendaire à laquelle une œuvre créative, un document ou une version logicielle est officiellement publiée ou rendue publique.
       ar: >-
-        تاريخ نشر كيان أو إتاحته للعموم، مثل تاريخ إصدار تقرير أو مجموعة بيانات
-        أو فهرس أو مورد رقمي أنتجته مؤسسة تراثية.
+        يحدد التاريخ التقويمي الذي يتم فيه إصدار عمل إبداعي أو مستند أو إصدار برمجي رسمياً أو جعله متاحاً للعموم.
       id: >-
-        Tanggal ketika suatu entitas dipublikasikan atau tersedia untuk umum, seperti
-        tanggal rilis laporan, dataset, katalog, atau sumber daya digital yang
-        diproduksi oleh institusi warisan budaya.
+        Menentukan tanggal kalender ketika karya kreatif, dokumen, atau versi perangkat lunak secara resmi dirilis atau dipublikasikan.
       zh: >-
-        实体发布或向公众提供的日期，如遗产机构制作的报告、数据集、目录或数字资源的
-        发布日期。
+        指定创意作品、文档或软件版本正式发布或公开的日历日期。
       es: >-
-        Fecha en que una entidad fue publicada o puesta a disposición del público,
-        como la fecha de publicación de un informe, conjunto de datos, catálogo o
-        recurso digital producido por una institución patrimonial.
+        Especifica la fecha calendario en la que una obra creativa, documento o versión de software se publica oficialmente o se hace pública.
     structured_aliases:
-      - literal_form: publicatiedatum
+      - literal_form: Publicatiedatum
         predicate: EXACT_SYNONYM
         in_language: nl
       - literal_form: Veröffentlichungsdatum
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: date de publication
+      - literal_form: Date de publication
         predicate: EXACT_SYNONYM
         in_language: fr
       - literal_form: تاريخ النشر
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: tanggal publikasi
+      - literal_form: Tanggal publikasi
         predicate: EXACT_SYNONYM
         in_language: id
       - literal_form: 出版日期
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: fecha de publicación
+      - literal_form: Fecha de publicación
         predicate: EXACT_SYNONYM
         in_language: es
     range: datetime
     aliases:
       - has_or_had_publication_date
+      - is_or_was_published
+      - published
     close_mappings:
       - schema:datePublished  # schemaorg.owl:14278-14300 - "Date of first publication or broadcast." Domain: CreativeWork/Certification.
     broad_mappings:
-      - dcterms:date  # Any date associated with a resource.
+      - dcterms:date  # dcterms.rdf:1122-1140 - "A point or period of time associated with an event in the lifecycle of the resource."
     comments:
       - "MIGRATED 2026-02-03 from has_or_had_publication_date for conciseness."
     annotations:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/published_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/published_through.yaml
index deeec2827e..092beee6d4 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/published_through.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/published_through.yaml
@@ -1,21 +1,22 @@
 # ==============================================================================
 # LinkML Slot Definition: published_through
 # ==============================================================================
-# The medium, channel, or platform through which an entity is published.
+# Medium, channel, platform, or mechanism through which an entity is issued,
+# distributed, or made public.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
-# | Ontology      | Property                   | File/Line               | Mapping | Notes                              |
-# |---------------|----------------------------|-------------------------|---------|------------------------------------|
-# | **Schema.org**| `schema:datePublished`     | schemaorg.owl:14278-14295| close   | "Date of first publication." -     |
-# |               |                            |                         |         | temporal aspect                    |
-# | **DCTerms**   | `dcterms:created`          | dcterms.rdf             | related | Date created - broader             |
-# | **CIDOC-CRM** | `crm:P4_has_time-span`     | CIDOC_CRM_v7.1.3.rdf    | related | Temporal extent                    |
+# | Ontology   | Property              | File/Line                | Mapping | Notes                                                    |
+# |------------|-----------------------|--------------------------|---------|----------------------------------------------------------|
+# | Schema.org | `schema:publishedOn`  | schemaorg.owl:31688-31710| related | "A broadcast service associated with the publication     |
+# |            |                       |                          |         | event." Domain: PublicationEvent. Range: BroadcastService.|
+# |            |                       |                          |         | Broadcast-specific; this slot is broader (any medium).   |
 #
-# Note: This slot captures publication via a medium/channel with temporal
-# extent using PublicationEvent class.
+# schema:publishedOn connects a PublicationEvent to a BroadcastService —
+# related but narrower than this slot which covers any medium/channel/platform.
 #
 # CREATED: 2026-02-04
+# UPDATED: 2026-02-08
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/published_through
@@ -25,85 +26,63 @@ prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  rico: https://www.ica.org/standards/RiC/ontology#
-  org: http://www.w3.org/ns/org#
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
   - linkml:types
+default_prefix: hc
 slots:
   published_through:
     slot_uri: hc:publishedThrough
     description: >-
-      The medium, channel, platform, or mechanism through which an entity
-      is issued, distributed, or made public.
+      The medium, channel, platform, or mechanism through which an entity is issued, distributed, or made public.
     alt_descriptions:
       nl: >-
-        Het medium, kanaal, platform of mechanisme waardoor een entiteit
-        wordt uitgegeven, gedistribueerd of openbaar gemaakt.
+        Het medium, kanaal, platform of mechanisme waardoor een entiteit wordt uitgegeven, gedistribueerd of openbaar gemaakt.
       de: >-
-        Das Medium, der Kanal, die Plattform oder der Mechanismus, über den
-        eine Entität herausgegeben, verteilt oder veröffentlicht wird.
+        Das Medium, der Kanal, die Plattform oder der Mechanismus, über den eine Entität herausgegeben, verteilt oder veröffentlicht wird.
       fr: >-
-        Le média, le canal, la plateforme ou le mécanisme par lequel une
-        entité est émise, distribuée ou rendue publique.
+        Le média, le canal, la plateforme ou le mécanisme par lequel une entité est émise, distribuée ou rendue publique.
       ar: >-
-        الوسيط أو القناة أو المنصة أو الآلية التي يتم من خلالها إصدار
-        الكيان أو توزيعه أو نشره.
+        الوسيط أو القناة أو المنصة أو الآلية التي يتم من خلالها إصدار الكيان أو توزيعه أو نشره.
       id: >-
-        Media, saluran, platform, atau mekanisme yang digunakan untuk
-        menerbitkan, mendistribusikan, atau mempublikasikan entitas.
+        Media, saluran, platform, atau mekanisme yang digunakan untuk menerbitkan, mendistribusikan, atau mempublikasikan entitas.
       zh: >-
         实体发行、分发或公开的媒介、渠道、平台或机制。
       es: >-
-        El medio, canal, plataforma o mecanismo a través del cual se emite,
-        distribuye o hace pública una entidad.
+        El medio, canal, plataforma o mecanismo a través del cual se emite, distribuye o hace pública una entidad.
     structured_aliases:
-      - literal_form: gepubliceerd via
+      - literal_form: Publicatiekanaal
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: veröffentlicht über
+      - literal_form: Veröffentlichungskanal
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: publié via
+      - literal_form: Canal de publication
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: منشور عبر
+      - literal_form: قناة النشر
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: diterbitkan melalui
+      - literal_form: Saluran penerbitan
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 通过...发布
+      - literal_form: 发布渠道
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: publicado a través de
+      - literal_form: Canal de publicación
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
     multivalued: false
-    close_mappings:
-      - schema:datePublished  # schemaorg.owl:14278-14295 - temporal aspect
-    related_mappings:
-      - dcterms:created
-      - crm:P4_has_time-span
-      - prov:atTime
     aliases:
       - is_or_was_published_at
     comments:
-      - |
-        **STRUCTURED REPRESENTATION**: Uses PublicationEvent class including:
-        - Temporal extent (precise or fuzzy via TimeSpan)
-        - Optional event label (e.g., "First Edition")
-        - Event identifier for tracking
-      - |
-        **SIMPLE TIMESTAMPS**: Create PublicationEvent with all four
-        TimeSpan boundaries set to the same instant.
+      - >-
+        STRUCTURED REPRESENTATION: Uses PublicationEvent class including temporal extent
+        (precise or fuzzy via TimeSpan), optional event label (e.g. "First Edition"),
+        and event identifier for tracking.
+      - >-
+        SIMPLE TIMESTAMPS: Create PublicationEvent with all four TimeSpan boundaries
+        set to the same instant.
     examples:
       - value: |
           temporal_extent:
@@ -124,3 +103,5 @@ slots:
       custodian_types_primary: L
       specificity_score: 0.5
       specificity_rationale: Publication channel/medium slot.
+    related_mappings:
+      - schema:publishedOn  # schemaorg.owl:31688-31710 - "A broadcast service associated with the publication event." Domain: PublicationEvent. Broadcast-specific.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_as.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_as.yaml
deleted file mode 100644
index 7755159c0d..0000000000
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_as.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-id: https://nde.nl/ontology/hc/slot/has_michelin_star
-name: has_michelin_star_slot
-title: has_michelin_star slot
-version: 1.0.0
-prefixes:
-  linkml: https://w3id.org/linkml/
-  hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
-imports:
-- linkml:types
-default_prefix: hc
-slots:
-  has_michelin_star:
-    slot_uri: schema:award
-    description: 'Whether restaurant has Michelin star(s).
-
-
-      Some museum restaurants achieve fine dining recognition.
-
-      '
-    range: boolean
-    aliases:
-      - has_or_had_michelin_star
-    annotations:
-      custodian_types:
-      - '*'
-    exact_mappings:
-    - schema:award
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_through.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_through.yaml
new file mode 100644
index 0000000000..19869e7b0e
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/ranked_through.yaml
@@ -0,0 +1,80 @@
+# ==============================================================================
+# LinkML Slot Definition: ranked_through
+# ==============================================================================
+# Mechanism, algorithm, competition, or system used to determine relative
+# position, status, or order of entities.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology   | Property        | File/Line                | Mapping | Notes                                                  |
+# |------------|-----------------|--------------------------|---------|--------------------------------------------------------|
+# | Schema.org | `schema:award`  | schemaorg.owl:9604-9629  | close   | "An award won by or for this item." Identifies the     |
+# |            |                 |                          |         | award itself, not the ranking mechanism/system.        |
+#
+# schema:award is about the award received (the result), not the mechanism
+# or system that determines ranking. Close but not exact.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/ranked_through
+name: ranked_through
+title: Ranked Through
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  schema: http://schema.org/
+imports:
+  - linkml:types
+default_prefix: hc
+slots:
+  ranked_through:
+    slot_uri: hc:rankedThrough
+    description: >-
+      Describes the mechanism, algorithm, competition, or system used to determine the relative position, status, or order of entities.
+    alt_descriptions:
+      nl: >-
+        Beschrijft het mechanisme, algoritme, de competitie of het systeem dat wordt gebruikt om de relatieve positie, status of volgorde van entiteiten te bepalen.
+      de: >-
+        Beschreibt den Mechanismus, Algorithmus, Wettbewerb oder das System, das verwendet wird, um die relative Position, den Status oder die Reihenfolge von Entitäten zu bestimmen.
+      fr: >-
+        Décrit le mécanisme, l'algorithme, la compétition ou le système utilisé pour déterminer la position relative, le statut ou l'ordre des entités.
+      ar: >-
+        يصف الآلية أو الخوارزمية أو المنافسة أو النظام المستخدم لتحديد الموقع النسبي أو الحالة أو ترتيب الكيانات.
+      id: >-
+        Menjelaskan mekanisme, algoritma, kompetisi, atau sistem yang digunakan untuk menentukan posisi relatif, status, atau urutan entitas.
+      zh: >-
+        描述用于确定实体相对位置、状态或顺序的机制、算法、竞赛或系统。
+      es: >-
+        Describe el mecanismo, algoritmo, competición o sistema utilizado para determinar la posición relativa, el estado o el orden de las entidades.
+    structured_aliases:
+      - literal_form: Rangschikking
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Rangordnung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Classement
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تصنيف
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Peringkat
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 排名
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Clasificación
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: boolean
+    aliases:
+      - has_or_had_michelin_star
+    comments:
+      - "Some museum restaurants achieve fine dining recognition (e.g. Michelin stars)."
+    annotations:
+      custodian_types: '["*"]'
+    close_mappings:
+      - schema:award  # schemaorg.owl:9604-9629 - "An award won by or for this item." Award received, not ranking mechanism.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/receive_investment.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/receive_investment.yaml
index 939d2d6fb9..7a6cf19da2 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/receive_investment.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/receive_investment.yaml
@@ -1,86 +1,74 @@
 # ==============================================================================
-# LinkML Slot Definition: has_investment
+# LinkML Slot Definition: receive_investment
 # ==============================================================================
-# Investment amount or value associated with the entity.
+# Accept capital, funding, or financial resources from an external entity,
+# organization, or individual.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
 #
-# | Ontology | Property | File/Line | Mapping | Notes                         |
-# |----------|----------|-----------|---------|-------------------------------|
-# | (none)   | —        | —         | —       | No standard match in ontology.|
+# | Ontology | Property | File/Line | Mapping | Notes                          |
+# |----------|----------|-----------|---------|--------------------------------|
+# | (none)   | —        | —         | —       | No standard match in ontology. |
 #
 # CREATED: 2026-02-07
+# UPDATED: 2026-02-08
 # ==============================================================================
 
-id: https://nde.nl/ontology/hc/slot/has_investment
-name: has_investment
-title: has_investment
+id: https://nde.nl/ontology/hc/slot/receive_investment
+name: receive_investment
+title: Receive Investment
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
-  has_investment:
-    name: has_investment
-    title: has_investment
-    slot_uri: hc:hasInvestment
+  receive_investment:
+    slot_uri: hc:receiveInvestment
     description: >-
-      To specify the monetary amount, financial commitment, or resource
-      allocation invested in the entity or its activities.
+      To accept capital, funding, or financial resources from an external entity, organization, or individual with the expectation of future profit, interest, or equity growth.
     alt_descriptions:
       nl: >-
-        Het specificeren van het geldbedrag, de financiële toezegging of de
-        toewijzing van middelen die in de entiteit of haar activiteiten zijn
-        geïnvesteerd.
+        Kapitaal, financiering of financiële middelen accepteren van een externe entiteit, organisatie of individu met de verwachting van toekomstige winst, rente of vermogensgroei.
       de: >-
-        Angabe des Geldbetrags, der finanziellen Verpflichtung oder der
-        Ressourcenzuweisung, die in die Entität oder ihre Aktivitäten
-        investiert wurde.
+        Kapital, Finanzierung oder finanzielle Mittel von einer externen Einheit, Organisation oder Einzelperson annehmen mit der Erwartung zukünftiger Gewinne, Zinsen oder Eigenkapitalwachstums.
       fr: >-
-        Spécifier le montant monétaire, l'engagement financier ou l'allocation
-        de ressources investi dans l'entité ou ses activités.
+        Accepter du capital, du financement ou des ressources financières d'une entité externe, d'une organisation ou d'un individu avec l'attente de profit futur, d'intérêts ou de croissance des capitaux propres.
       ar: >-
-        تحديد المبلغ المالي أو الالتزام المالي أو تخصيص الموارد المستثمرة
-        في الكيان أو أنشطته.
+        قبول رأس المال أو التمويل أو الموارد المالية من كيان أو منظمة أو فرد خارجي مع توقع تحقيق أرباح أو فوائد أو نمو في حقوق الملكية مستقبلاً.
       id: >-
-        Menentukan jumlah uang, komitmen keuangan, atau alokasi sumber daya
-        yang diinvestasikan dalam entitas atau aktivitasnya.
+        Menerima modal, pendanaan, atau sumber daya keuangan dari entitas, organisasi, atau individu eksternal dengan harapan keuntungan, bunga, atau pertumbuhan ekuitas di masa depan.
       zh: >-
-        指定投资于实体或其活动的货币金额、财务承诺或资源分配。
+        接受来自外部实体、组织或个人的资本、资金或财务资源，并期望获得未来的利润、利息或股权增长。
       es: >-
-        Especificar el monto monetario, compromiso financiero o asignación de
-        recursos invertidos en la entidad o sus actividades.
+        Aceptar capital, financiamiento o recursos financieros de una entidad externa, organización o individuo con la expectativa de ganancias futuras, intereses o crecimiento patrimonial.
     structured_aliases:
-      - literal_form: heeft investering
+      - literal_form: Investering
         predicate: EXACT_SYNONYM
         in_language: nl
-      - literal_form: hat Investition
+      - literal_form: Investition
         predicate: EXACT_SYNONYM
         in_language: de
-      - literal_form: a un investissement
+      - literal_form: Investissement
         predicate: EXACT_SYNONYM
         in_language: fr
-      - literal_form: له استثمار
+      - literal_form: استثمار
         predicate: EXACT_SYNONYM
         in_language: ar
-      - literal_form: memiliki investasi
+      - literal_form: Investasi
         predicate: EXACT_SYNONYM
         in_language: id
-      - literal_form: 具有投资
+      - literal_form: 投资
         predicate: EXACT_SYNONYM
         in_language: zh
-      - literal_form: tiene inversión
+      - literal_form: Inversión
         predicate: EXACT_SYNONYM
         in_language: es
     range: string
     aliases:
       - has_or_had_investment
+    comments:
+      - "MIGRATED 2026-02-03 from has_or_had_investment for conciseness."
     annotations:
       custodian_types: '["*"]'
-    comments:
-      - |
-        MIGRATED 2026-02-03 from has_or_had_investment for conciseness.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/require.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/require.yaml
index 6583e2fe69..0127ab3e7d 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/require.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/require.yaml
@@ -1,24 +1,76 @@
+# ==============================================================================
+# LinkML Slot Definition: require
+# ==============================================================================
+# Necessary condition, capability, or demand that must be met or possessed
+# by an entity to achieve a goal or function.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property | File/Line | Mapping | Notes                          |
+# |----------|----------|-----------|---------|--------------------------------|
+# | (none)   | —        | —         | —       | No standard match in ontology. |
+#
+# Schema.org has ActionAccessSpecification (requirements for actions) but
+# no general "requires" property for entity-level requirements.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/require
 name: require
-title: require
+title: Require
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   require:
-    name: require
-    description: |
-      To specify a necessary condition, capability, or demand that must be met or possessed by an entity to achieve a goal or function.
-      
-      MIGRATED 2026-02-03 from has_or_had_requirement for conciseness.
     slot_uri: hc:require
+    description: >-
+      To specify a necessary condition, capability, or demand that must be met or possessed by an entity to achieve a goal or function.
+    alt_descriptions:
+      nl: >-
+        Specificeert een noodzakelijke voorwaarde, vaardigheid of eis waaraan een entiteit moet voldoen of die zij moet bezitten om een doel of functie te bereiken.
+      de: >-
+        Gibt eine notwendige Bedingung, Fähigkeit oder Anforderung an, die von einer Entität erfüllt oder besessen werden muss, um ein Ziel oder eine Funktion zu erreichen.
+      fr: >-
+        Spécifie une condition nécessaire, une capacité ou une exigence qui doit être satisfaite ou possédée par une entité pour atteindre un objectif ou une fonction.
+      ar: >-
+        يحدد شرطاً ضرورياً أو قدرة أو متطلباً يجب استيفاؤه أو امتلاكه من قبل كيان لتحقيق هدف أو وظيفة.
+      id: >-
+        Menentukan kondisi, kemampuan, atau tuntutan yang diperlukan yang harus dipenuhi atau dimiliki oleh suatu entitas untuk mencapai tujuan atau fungsi.
+      zh: >-
+        指定实体必须满足或具备的必要条件、能力或需求，以实现目标或功能。
+      es: >-
+        Especifica una condición necesaria, capacidad o demanda que debe ser cumplida o poseída por una entidad para lograr un objetivo o función.
+    structured_aliases:
+      - literal_form: Vereiste
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Anforderung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Exigence
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: متطلب
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Persyaratan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 要求
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Requisito
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     aliases:
       - has_or_had_requirement
+    comments:
+      - "MIGRATED 2026-02-03 from has_or_had_requirement for conciseness."
     annotations:
       custodian_types: '["*"]'
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/restricted_by.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/restricted_by.yaml
index d3a6de4e27..0d6f9cad03 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/restricted_by.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/restricted_by.yaml
@@ -1,21 +1,80 @@
-id: https://nde.nl/ontology/hc/slot/has_restriction
-name: has_restriction
-title: has_restriction
+# ==============================================================================
+# LinkML Slot Definition: restricted_by
+# ==============================================================================
+# Rule, law, agent, permission setting, or mechanism that imposes limitations,
+# constraints, or access controls on an entity or process.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property               | File/Line              | Mapping | Notes                                                     |
+# |----------|------------------------|------------------------|---------|---------------------------------------------------------  |
+# | DCTerms  | `dcterms:accessRights` | dcterms.rdf:786-810    | close   | "Information about who access the resource or an           |
+# |          |                        |                        |         | indication of its security status." Resource access only.  |
+#
+# dcterms:accessRights is close but specifically about resource access rights.
+# This slot is broader: any restriction (legal, physical, policy) on any entity.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/restricted_by
+name: restricted_by
+title: restricted by
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
   dcterms: http://purl.org/dc/terms/
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
-  has_restriction:
-    name: has_restriction
-    description: A restriction or limitation. MIGRATED 2026-02-03 from has_or_had_restriction for conciseness.
-    slot_uri: hc:hasRestriction
+  restricted_by:
+    slot_uri: hc:restrictedBy
+    description: >-
+      Identifies the rule, law, agent, permission setting, or mechanism that imposes limitations, constraints, or access controls on an entity or process.
+    alt_descriptions:
+      nl: >-
+        Identificeert de regel, wet, actor, toestemmingsinstelling of het mechanisme dat beperkingen, restricties of toegangscontroles oplegt aan een entiteit of proces.
+      de: >-
+        Identifiziert die Regel, das Gesetz, den Akteur, die Berechtigungseinstellung oder den Mechanismus, der Einschränkungen, Beschränkungen oder Zugriffskontrollen für eine Entität oder einen Prozess auferlegt.
+      fr: >-
+        Identifie la règle, la loi, l'agent, le paramètre d'autorisation ou le mécanisme qui impose des limitations, des contraintes ou des contrôles d'accès à une entité ou un processus.
+      ar: >-
+        يحدد القاعدة أو القانون أو الجهة أو إعداد الإذن أو الآلية التي تفرض قيوداً أو ضوابط وصول على كيان أو عملية.
+      id: >-
+        Mengidentifikasi aturan, hukum, agen, pengaturan izin, atau mekanisme yang memberlakukan batasan, kendala, atau kontrol akses pada entitas atau proses.
+      zh: >-
+        标识对实体或过程施加限制、约束或访问控制的规则、法律、代理人、权限设置或机制。
+      es: >-
+        Identifica la regla, ley, agente, configuración de permisos o mecanismo que impone limitaciones, restricciones o controles de acceso a una entidad o proceso.
+    structured_aliases:
+      - literal_form: Beperking
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Einschränkung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Restriction
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تقييد
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Pembatasan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 限制
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Restricción
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     aliases:
       - has_or_had_restriction
+    comments:
+      - "MIGRATED 2026-02-03 from has_or_had_restriction for conciseness."
     annotations:
       custodian_types: '["*"]'
+    close_mappings:
+      - dcterms:accessRights  # dcterms.rdf:786-810 - "Information about who access the resource or an indication of its security status."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/retrieved_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/retrieved_at.yaml
index 3598c8c463..2f32e38067 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/retrieved_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/retrieved_at.yaml
@@ -86,6 +86,7 @@ slots:
       - schema:dateRetrieved
     aliases:
       - is_or_was_retrieved_at
+      - was_fetched_at
     comments:
       - |
         **PROV-O USAGE NOTE**:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/returned.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/returned.yaml
index f5e484e172..3b5f1a28d2 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/returned.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/returned.yaml
@@ -1,20 +1,72 @@
+# ==============================================================================
+# LinkML Slot Definition: returned
+# ==============================================================================
+# Sent back, restored, or conveyed to the original owner, custody, or location
+# from which it was temporarily removed.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property | File/Line | Mapping | Notes                          |
+# |----------|----------|-----------|---------|--------------------------------|
+# | (none)   | —        | —         | —       | No standard match in ontology. |
+#
+# The concept of restitution/return is domain-specific to heritage custodians
+# and not captured by general-purpose ontologies.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/returned
 name: returned
-title: returned
+title: Returned
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   returned:
-    name: returned
-    title: returned
-    description: |
-      To be sent back, restored, or conveyed to the original owner, custody, or location from which it was temporarily removed.
     slot_uri: hc:returned
+    description: >-
+      To be sent back, restored, or conveyed to the original owner, custody, or location from which it was temporarily removed.
+    alt_descriptions:
+      nl: >-
+        Teruggestuurd, hersteld of overgebracht naar de oorspronkelijke eigenaar, bewaarder of locatie waarvan het tijdelijk was verwijderd.
+      de: >-
+        Zurückgesendet, wiederhergestellt oder an den ursprünglichen Eigentümer, Verwahrer oder Ort zurückgebracht, von dem es vorübergehend entfernt wurde.
+      fr: >-
+        Renvoyé, restauré ou transféré au propriétaire, dépositaire ou lieu d'origine dont il avait été temporairement retiré.
+      ar: >-
+        أُعيد أو أُرجع أو نُقل إلى المالك الأصلي أو الجهة الحافظة أو الموقع الذي أُزيل منه مؤقتاً.
+      id: >-
+        Dikirim kembali, dipulihkan, atau diserahkan kepada pemilik asli, penjaga, atau lokasi dari mana ia dipindahkan sementara.
+      zh: >-
+        被送回、恢复或移交给原始所有者、保管方或其被临时移走的位置。
+      es: >-
+        Devuelto, restaurado o trasladado al propietario original, custodio o ubicación de donde fue temporalmente retirado.
+    structured_aliases:
+      - literal_form: Geretourneerd
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Zurückgegeben
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Restitué
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مُعاد
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Dikembalikan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 已归还
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Devuelto
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: boolean
     aliases:
       - is_or_was_returned
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/revision_of.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/revision_of.yaml
index 74d2e41550..477c0d9399 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/revision_of.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/revision_of.yaml
@@ -1,26 +1,79 @@
+# ==============================================================================
+# LinkML Slot Definition: revision_of
+# ==============================================================================
+# Modified, updated, or edited version derived from a specific earlier
+# iteration or predecessor of the same entity.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property               | File/Line        | Mapping | Notes                                                   |
+# |----------|------------------------|------------------|---------|---------------------------------------------------------|
+# | PROV-O   | `prov:wasRevisionOf`   | prov.ttl:1225-1240| exact  | "A revision is a derivation that revises an entity into  |
+# |          |                        |                  |         | a revised version." Domain: Entity, Range: Entity.       |
+#
+# prov:wasRevisionOf is semantically equivalent: both express that the current
+# entity is a modified version derived from an earlier entity. Kept as exact.
+# slot_uri remains hc:revisionOf (PROV-O property is infrastructure-level).
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/revision_of
 name: revision_of
-title: revision_of
+title: revision of
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  dcterms: http://purl.org/dc/terms/
   prov: http://www.w3.org/ns/prov#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   revision_of:
-    name: revision_of
-    title: revision_of
-    description: |
-      To be a modified, updated, or edited version derived from a specific earlier iteration or predecessor of the same entity.
     slot_uri: hc:revisionOf
-    range: string # uriorcurie
+    description: >-
+      To be a modified, updated, or edited version derived from a specific earlier iteration or predecessor of the same entity.
+    alt_descriptions:
+      nl: >-
+        Een gewijzigde, bijgewerkte of bewerkte versie die is afgeleid van een specifieke eerdere iteratie of voorganger van dezelfde entiteit.
+      de: >-
+        Eine modifizierte, aktualisierte oder bearbeitete Version, die von einer bestimmten früheren Iteration oder einem Vorgänger derselben Entität abgeleitet ist.
+      fr: >-
+        Une version modifiée, mise à jour ou éditée dérivée d'une itération antérieure spécifique ou d'un prédécesseur de la même entité.
+      ar: >-
+        نسخة معدلة أو محدثة أو منقحة مشتقة من تكرار سابق محدد أو سلف لنفس الكيان.
+      id: >-
+        Versi yang dimodifikasi, diperbarui, atau diedit yang berasal dari iterasi atau pendahulu tertentu sebelumnya dari entitas yang sama.
+      zh: >-
+        从同一实体的特定早期迭代或前身衍生的修改、更新或编辑版本。
+      es: >-
+        Una versión modificada, actualizada o editada derivada de una iteración anterior específica o un predecesor de la misma entidad.
+    structured_aliases:
+      - literal_form: Herziening
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Überarbeitung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Révision
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مراجعة
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Revisi
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 修订
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Revisión
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_revision_of
     annotations:
       custodian_types: '["*"]'
     exact_mappings:
-    - prov:wasRevisionOf
+      - prov:wasRevisionOf  # prov.ttl:1225-1240 - "A revision is a derivation that revises an entity into a revised version."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/signed_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/signed_at.yaml
index d8188967ef..60fa9f7d0f 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/signed_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/signed_at.yaml
@@ -1,23 +1,73 @@
+# ==============================================================================
+# LinkML Slot Definition: signed_at
+# ==============================================================================
+# Geographic location or place where an entity (such as a document or
+# agreement) was officially signed.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property | File/Line | Mapping | Notes                          |
+# |----------|----------|-----------|---------|--------------------------------|
+# | (none)   | —        | —         | —       | No standard match in ontology. |
+#
+# Signing location is a domain-specific concept not directly captured by
+# general-purpose ontologies. schema:location is too general.
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/signed_at
 name: signed_at
-title: signed_at
+title: Signed At
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  schema: http://schema.org/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   signed_at:
-    name: signed_at
-    title: signed_at
-    description: |
-      To specify the geographic location or place where the entity (such as a document or agreement) was officially signed.
     slot_uri: hc:signedAt
-    range: string # uriorcurie
-    # range: Place
+    description: >-
+      To specify the geographic location or place where the entity (such as a document or agreement) was officially signed.
+    alt_descriptions:
+      nl: >-
+        Specificeert de geografische locatie of plaats waar de entiteit (zoals een document of overeenkomst) officieel is ondertekend.
+      de: >-
+        Gibt den geografischen Ort oder Platz an, an dem die Entität (z. B. ein Dokument oder eine Vereinbarung) offiziell unterzeichnet wurde.
+      fr: >-
+        Spécifie le lieu géographique ou l'endroit où l'entité (comme un document ou un accord) a été officiellement signée.
+      ar: >-
+        يحدد الموقع الجغرافي أو المكان الذي تم فيه التوقيع الرسمي على الكيان (مثل مستند أو اتفاقية).
+      id: >-
+        Menentukan lokasi geografis atau tempat di mana entitas (seperti dokumen atau perjanjian) secara resmi ditandatangani.
+      zh: >-
+        指定实体（如文件或协议）被正式签署的地理位置或地点。
+      es: >-
+        Especifica la ubicación geográfica o lugar donde la entidad (como un documento o acuerdo) fue firmada oficialmente.
+    structured_aliases:
+      - literal_form: Ondertekeningslocatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Unterzeichnungsort
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Lieu de signature
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مكان التوقيع
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Lokasi penandatanganan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 签署地点
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Lugar de firma
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string  # uriorcurie
     aliases:
       - is_or_was_signed_at
     annotations:
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/signed_on.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/signed_on.yaml
index a37abf6f39..571a139283 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/signed_on.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/signed_on.yaml
@@ -1,20 +1,72 @@
+# ==============================================================================
+# LinkML Slot Definition: signed_on
+# ==============================================================================
+# Specific date when a document, agreement, or instrument was officially
+# signed or executed.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology | Property | File/Line | Mapping | Notes                          |
+# |----------|----------|-----------|---------|--------------------------------|
+# | (none)   | —        | —         | —       | No standard match in ontology. |
+#
+# Signing date is a domain-specific concept. dcterms:date is too general
+# (any date associated with a resource lifecycle event).
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/signed_on
 name: signed_on
-title: signed_on
+title: Signed On
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   signed_on:
-    name: signed_on
-    title: signed_on
-    description: |
-      To record the specific date when a document, agreement, or instrument was officially signed or executed.
     slot_uri: hc:signedOn
+    description: >-
+      To record the specific date when a document, agreement, or instrument was officially signed or executed.
+    alt_descriptions:
+      nl: >-
+        Registreert de specifieke datum waarop een document, overeenkomst of instrument officieel is ondertekend of uitgevoerd.
+      de: >-
+        Erfasst das spezifische Datum, an dem ein Dokument, eine Vereinbarung oder ein Instrument offiziell unterzeichnet oder ausgeführt wurde.
+      fr: >-
+        Enregistre la date précise à laquelle un document, un accord ou un instrument a été officiellement signé ou exécuté.
+      ar: >-
+        يسجل التاريخ المحدد الذي تم فيه التوقيع الرسمي على مستند أو اتفاقية أو صك أو تنفيذه.
+      id: >-
+        Mencatat tanggal spesifik ketika dokumen, perjanjian, atau instrumen secara resmi ditandatangani atau dilaksanakan.
+      zh: >-
+        记录文件、协议或文书被正式签署或执行的具体日期。
+      es: >-
+        Registra la fecha específica en que un documento, acuerdo o instrumento fue firmado o ejecutado oficialmente.
+    structured_aliases:
+      - literal_form: Ondertekeningsdatum
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Unterzeichnungsdatum
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Date de signature
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تاريخ التوقيع
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Tanggal penandatanganan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 签署日期
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Fecha de firma
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: date
     aliases:
       - is_or_was_signed_on
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/stored_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/stored_at.yaml
index a7a926422d..7a02fd0c37 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/stored_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/stored_at.yaml
@@ -1,14 +1,22 @@
 # ==============================================================================
 # LinkML Slot Definition: stored_at
 # ==============================================================================
-# Location where an entity is stored.
+# Kept, maintained, or physically located within a specific facility,
+# repository, or storage medium.
 #
 # ONTOLOGY ALIGNMENT (verified against data/ontology/):
-# | Ontology      | Property          | Mapping | Notes                            |
-# |---------------|-------------------|---------|----------------------------------|
-# | **Schema.org**| `schema:location` | close   | General location                 |
+#
+# | Ontology   | Property           | File/Line                | Mapping | Notes                                                  |
+# |------------|--------------------|--------------------------|---------|-------------------------------------------------       |
+# | Schema.org | `schema:location`  | schemaorg.owl:25018-25046| close   | "The location of, for example, where an event is       |
+# |            |                    |                          |         | happening, where an organization is situated, ..."     |
+# |            |                    |                          |         | General location, not specifically storage location.   |
+#
+# schema:location is close but too general — it's the location of any entity,
+# not specifically the storage/repository location.
 #
 # CREATED: 2026-02-03
+# UPDATED: 2026-02-08
 # ==============================================================================
 
 id: https://nde.nl/ontology/hc/slot/stored_at
@@ -18,25 +26,56 @@ prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  prov: http://www.w3.org/ns/prov#
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  xsd: http://www.w3.org/2001/XMLSchema#
-default_prefix: hc
 imports:
-- linkml:types
+  - linkml:types
+default_prefix: hc
 slots:
   stored_at:
     slot_uri: hc:storedAt
-    description: |
+    description: >-
       To be kept, maintained, or physically located within a specific facility, repository, or storage medium.
+    alt_descriptions:
+      nl: >-
+        Bewaard, onderhouden of fysiek geplaatst in een specifieke faciliteit, opslagplaats of opslagmedium.
+      de: >-
+        Aufbewahrt, gepflegt oder physisch in einer bestimmten Einrichtung, einem Repositorium oder Speichermedium befindlich.
+      fr: >-
+        Conservé, entretenu ou physiquement situé dans une installation, un dépôt ou un support de stockage spécifique.
+      ar: >-
+        محفوظ أو مصان أو موجود فعلياً ضمن منشأة أو مستودع أو وسيط تخزين محدد.
+      id: >-
+        Disimpan, dipelihara, atau secara fisik berada dalam fasilitas, repositori, atau media penyimpanan tertentu.
+      zh: >-
+        保存、维护或物理存放在特定设施、存储库或存储介质中。
+      es: >-
+        Guardado, mantenido o ubicado físicamente en una instalación, repositorio o medio de almacenamiento específico.
+    structured_aliases:
+      - literal_form: Opslaglocatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Lagerort
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Lieu de stockage
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: مكان التخزين
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Lokasi penyimpanan
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 存储位置
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Lugar de almacenamiento
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     multivalued: true
-    close_mappings:
-      - schema:location
     aliases:
       - is_or_was_stored_at
     annotations:
       custodian_types: '["*"]'
+    close_mappings:
+      - schema:location  # schemaorg.owl:25018-25046 - General location property. Not specifically storage location.
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/temporal_extent.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/temporal_extent.yaml
index 79506a6f03..d496685fee 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/temporal_extent.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/temporal_extent.yaml
@@ -93,6 +93,8 @@ slots:
     aliases:
       - has_or_had_temporal_extent
       - is_or_was_quantity_date
+      - programme_period
+      - programme_year
     comments:
       - |
         **CIDOC-CRM ALIGNMENT**: Maps to crm:P4_has_time-span which links
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/updated_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/updated_at.yaml
index 2f4a93ff9e..05a9a57491 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/updated_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/updated_at.yaml
@@ -84,6 +84,8 @@ slots:
     range: datetime
     aliases:
       - is_or_was_was_last_updated_at
+      - is_or_was_last_updated_at
+      - last_updated_at
     exact_mappings:
       - dcterms:modified  # dcterms.rdf:1713-1737 - "Date on which resource was changed"
       - schema:dateModified  # schemaorg.owl:14234-14237 - "Date CreativeWork was modified"
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/warrant.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/warrant.yaml
new file mode 100644
index 0000000000..43cb5ba721
--- /dev/null
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/warrant.yaml
@@ -0,0 +1,100 @@
+# ==============================================================================
+# LinkML Slot Definition: warrant
+# ==============================================================================
+# Justifiable reason, ground, or authorization for an action, belief, or outcome.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **PROV-O**    | `prov:wasDerivedFrom` | prov.ttl:1099-1115       | close   | "A derivation is a transformation of an entity into another, an update of   |
+# |               |                       |                          |         | an entity resulting in a new one, or the construction of a new entity based |
+# |               |                       |                          |         | on a pre-existing entity." Entity->Entity. General provenance derivation    |
+# |               |                       |                          |         | chain; not specifically about justification/warrant but related.            |
+# | **PROV-O**    | `prov:wasQuotedFrom`  | prov.ttl:1209-1225       | related | "An entity is derived from an original entity by copying, or 'quoting',    |
+# |               |                       |                          |         | some or all of it." Entity->Entity. Quoting is about copying/referencing   |
+# |               |                       |                          |         | content, not about providing justification or evidence.                     |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
+id: https://nde.nl/ontology/hc/slot/warrant
+name: warrant
+title: Warrant
+prefixes:
+  linkml: https://w3id.org/linkml/
+  hc: https://nde.nl/ontology/hc/
+  prov: http://www.w3.org/ns/prov#
+default_prefix: hc
+imports:
+- linkml:types
+slots:
+  warrant:
+    slot_uri: hc:warrant
+    description: >-
+      Serves as a justifiable reason, ground, or authorization for an
+      action, belief, or outcome, necessitating a specific course of action.
+    alt_descriptions:
+      nl: >-
+        Dient als gerechtvaardigde reden, grond of autorisatie voor een
+        handeling, overtuiging of resultaat, die een specifieke handelswijze
+        noodzakelijk maakt.
+      de: >-
+        Dient als gerechtfertigter Grund, Grundlage oder Autorisierung fur
+        eine Handlung, Uberzeugung oder ein Ergebnis und erfordert eine
+        bestimmte Vorgehensweise.
+      fr: >-
+        Sert de raison justifiable, de fondement ou d'autorisation pour
+        une action, une croyance ou un resultat, necessitant un plan
+        d'action specifique.
+      ar: >-
+        يعمل كسبب مبرر أو أساس أو تفويض لإجراء أو اعتقاد أو نتيجة،
+        مما يستلزم مسار عمل محدد.
+      id: >-
+        Berfungsi sebagai alasan yang dapat dibenarkan, dasar, atau
+        otorisasi untuk suatu tindakan, keyakinan, atau hasil, yang
+        mengharuskan tindakan tertentu.
+      zh: >-
+        作为行动、信念或结果的正当理由、依据或授权，需要采取特定的行动方针。
+      es: >-
+        Sirve como razon justificable, fundamento o autorizacion para una
+        accion, creencia o resultado, que requiere un curso de accion
+        especifico.
+    structured_aliases:
+      - literal_form: Rechtvaardiging
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Rechtfertigung
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Justification
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: تبرير
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Pembenaran
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 论证依据
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Justificacion
+        predicate: EXACT_SYNONYM
+        in_language: es
+    range: string
+    multivalued: true
+    inlined_as_list: false
+    close_mappings:
+      - prov:wasDerivedFrom  # prov.ttl:1099-1115 - "A derivation is a transformation of an entity into another." General provenance derivation, not specifically justification.
+    related_mappings:
+      - prov:wasQuotedFrom  # prov.ttl:1209-1225 - "An entity is derived from an original entity by copying, or 'quoting', some or all of it." Quoting, not warranting.
+    annotations:
+      custodian_types: '["*"]'
+    comments:
+      - "CREATED 2026-01-19: Replaces claim slot per Rule 53/56."
+      - Uses argumentation semantics from the Toulmin model.
+      - Range is base Claim class - subclasses narrow as needed.
+      - "Usage Patterns: WebEnrichment.warrants_or_warranted -> WebClaim instances; ResearchSource.warrants_or_warranted -> Claim instances; PersonProfile.warrants_or_warranted -> PersonWebClaim instances."
+      - "From argumentation theory (Toulmin model): Claims provide evidence that WARRANTS conclusions; a claim can be WARRANTED BY supporting evidence."
+      - "MIGRATION NOTE (2026-01-19): Replaces claim slot per slot_fixes.yaml (Rule 53/56). Uses RiC-O temporal naming convention."
diff --git a/schemas/20251121/linkml/modules/slots/20260202_matang/webarchived_at.yaml b/schemas/20251121/linkml/modules/slots/20260202_matang/webarchived_at.yaml
index 5968c72eca..b6f900952c 100644
--- a/schemas/20251121/linkml/modules/slots/20260202_matang/webarchived_at.yaml
+++ b/schemas/20251121/linkml/modules/slots/20260202_matang/webarchived_at.yaml
@@ -1,41 +1,108 @@
+# ==============================================================================
+# LinkML Slot Definition: webarchived_at
+# ==============================================================================
+# URL or archive service location where a web resource snapshot is preserved.
+#
+# ONTOLOGY ALIGNMENT (verified against data/ontology/):
+#
+# | Ontology      | Property              | File/Line                | Mapping | Notes                                                                       |
+# |---------------|-----------------------|--------------------------|---------|-----------------------------------------------------------------------------|
+# | **Schema.org**| `schema:archivedAt`   | schemaorg.owl:8358-8380  | close   | "Indicates a page or link involved in archival of a CreativeWork." Domain:  |
+# |               |                       |                          |         | CreativeWork, Range: URL|WebPage. Specifically about archival locations but |
+# |               |                       |                          |         | domain is CreativeWork-specific; this slot covers web resources generally.  |
+# | **PROV-O**    | `prov:alternateOf`    | prov.ttl:466-479         | related | "Two alternate entities present aspects of the same thing." Entity->Entity. |
+# |               |                       |                          |         | General alternate representation — an archived snapshot IS an alternate,    |
+# |               |                       |                          |         | but alternateOf does not specifically mean archival.                        |
+#
+# CREATED: 2026-02-08
+# ==============================================================================
+
 id: https://nde.nl/ontology/hc/slot/webarchived_at
-name: webarchived_at_slot
-title: Webarchived At Slot
+name: webarchived_at
+title: Webarchived At
 prefixes:
   linkml: https://w3id.org/linkml/
   hc: https://nde.nl/ontology/hc/
   prov: http://www.w3.org/ns/prov#
   schema: http://schema.org/
-  dcterms: http://purl.org/dc/terms/
-  crm: http://www.cidoc-crm.org/cidoc-crm/
-  skos: http://www.w3.org/2004/02/skos/core#
-  rdfs: http://www.w3.org/2000/01/rdf-schema#
-  org: http://www.w3.org/ns/org#
-  xsd: http://www.w3.org/2001/XMLSchema#
 default_prefix: hc
 imports:
 - linkml:types
 slots:
   webarchived_at:
-    slot_uri: prov:alternateOf
-    description: "URL to a web archive snapshot of this entity's content.\n\n**Temporal Semantics** (RiC-O Pattern):\nThe \"isOrWas\" naming follows RiC-O convention. Web archives\ncapture content at a specific point in time.\n\n**Ontological Alignment**:\n- **Primary** (`slot_uri`): `prov:alternateOf` - PROV-O alternate\n  representation (archived version of original)\n- **Related**: `schema:archivedAt` - Schema.org archived location\n\n**Web Archive Services**:\n- Internet Archive Wayback Machine: web.archive.org\n- Archive.today: archive.ph\n- UK Web Archive: webarchive.org.uk\n- National library web archives\n\n**Range**: URL class (structured URL with type and metadata)\n\n**Provenance Value**:\nEssential for data verification - archived snapshots prove\ncontent existed at extraction time.\n\n**Cardinality**:\nMultivalued - content may be archived at multiple services/times.\n"
+    slot_uri: hc:webarchivedAt
+    description: >-
+      Identifies the specific URL, repository, or archive service location
+      where a snapshot or historical version of a web resource has been
+      preserved for long-term access.
+    alt_descriptions:
+      nl: >-
+        Identificeert de specifieke URL, repository of archiefdienstlocatie
+        waar een momentopname of historische versie van een webbron is
+        bewaard voor langetermijntoegang.
+      de: >-
+        Identifiziert die spezifische URL, das Repository oder den
+        Archivdienststandort, an dem ein Snapshot oder eine historische
+        Version einer Webressource zur langfristigen Zugangssicherung
+        aufbewahrt wurde.
+      fr: >-
+        Identifie l'URL specifique, le depot ou l'emplacement du service
+        d'archivage ou un instantane ou une version historique d'une
+        ressource web a ete conserve pour un acces a long terme.
+      ar: >-
+        يحدد عنوان URL المحدد أو المستودع أو موقع خدمة الأرشيف حيث تم
+        حفظ لقطة أو نسخة تاريخية من مورد ويب للوصول طويل الأمد.
+      id: >-
+        Mengidentifikasi URL spesifik, repositori, atau lokasi layanan
+        arsip tempat salinan atau versi historis dari sumber daya web
+        telah dilestarikan untuk akses jangka panjang.
+      zh: >-
+        标识特定的URL、存储库或档案服务位置，在该位置保存了网络资源的快照或历史版本以供长期访问。
+      es: >-
+        Identifica la URL especifica, el repositorio o la ubicacion del
+        servicio de archivo donde se ha conservado una instantanea o
+        version historica de un recurso web para acceso a largo plazo.
+    structured_aliases:
+      - literal_form: Webarchieflocatie
+        predicate: EXACT_SYNONYM
+        in_language: nl
+      - literal_form: Webarchivstandort
+        predicate: EXACT_SYNONYM
+        in_language: de
+      - literal_form: Emplacement d'archivage web
+        predicate: EXACT_SYNONYM
+        in_language: fr
+      - literal_form: موقع أرشيف الويب
+        predicate: EXACT_SYNONYM
+        in_language: ar
+      - literal_form: Lokasi arsip web
+        predicate: EXACT_SYNONYM
+        in_language: id
+      - literal_form: 网络存档位置
+        predicate: EXACT_SYNONYM
+        in_language: zh
+      - literal_form: Ubicacion de archivo web
+        predicate: EXACT_SYNONYM
+        in_language: es
     range: string
     required: false
     multivalued: true
     inlined: false
     inlined_as_list: false
     aliases:
-    - is_or_was_webarchived_at
-    exact_mappings:
-    - prov:alternateOf
+      - is_or_was_webarchived_at
+    close_mappings:
+      - schema:archivedAt  # schemaorg.owl:8358-8380 - "Indicates a page or link involved in archival of a CreativeWork." Domain: CreativeWork, Range: URL|WebPage. Specifically about archival but domain is CreativeWork-specific.
     related_mappings:
-    - schema:archivedAt
+      - prov:alternateOf  # prov.ttl:466-479 - "Two alternate entities present aspects of the same thing." General alternate representation, not specifically archival.
     annotations:
       custodian_types: '["*"]'
       custodian_types_rationale: Web archiving applies to all heritage types.
       specificity_score: 0.3
       specificity_rationale: Specialized for provenance/archival contexts.
     comments:
-    - Links to web archive snapshots
-    - Maps to prov:alternateOf for archived representation
-    - Essential for data provenance verification
+      - Links to web archive snapshots for long-term preservation.
+      - "Temporal Semantics (RiC-O Pattern): The 'isOrWas' naming follows RiC-O convention. Web archives capture content at a specific point in time."
+      - "Web Archive Services include: Internet Archive Wayback Machine (web.archive.org), Archive.today (archive.ph), UK Web Archive (webarchive.org.uk), national library web archives."
+      - Essential for data provenance verification - archived snapshots prove content existed at extraction time.
+      - Multivalued - content may be archived at multiple services/times.