id: https://nde.nl/ontology/hc/class/Alpha2Code
name: Alpha2Code
title: ISO 3166-1 Alpha-2 Country Code
prefixes:
  linkml: https://w3id.org/linkml/
  hc: https://nde.nl/ontology/hc/
  skos: http://www.w3.org/2004/02/skos/core#
  schema: http://schema.org/
default_prefix: hc
imports:
  - linkml:types
  - ../slots/has_or_had_code
classes:
  Alpha2Code:
    class_uri: skos:Concept
    description: 'ISO 3166-1 alpha-2 country code (two-letter code).


      **DEFINITION**:


      A two-letter country code as defined by ISO 3166-1 alpha-2 standard.

      Used for representing countries and dependent territories.


      **EXAMPLES**:

      - NL = Netherlands

      - BE = Belgium

      - DE = Germany

      - US = United States


      **ONTOLOGY ALIGNMENT**:

      - SKOS Concept: Codes are concepts in ISO 3166-1 vocabulary

      - Schema.org: addressCountry can use alpha-2 codes

      '
    slots:
    - has_or_had_code
    slot_usage:
      has_or_had_code:
        pattern: ^[A-Z]{2}$
        required: true
        examples:
        - value: NL
        - value: BE
    exact_mappings:
    - skos:Concept
    annotations:
      specificity_score: '0.30'
      specificity_rationale: Low specificity - standard country codes used broadly.
      custodian_types: "['*']"
    examples:
    - value:
        has_or_had_code: NL