{
  "ppid": "ID_NL-UT-RHE_197X_NL-UT-RHE_XXXX_SANDRA-BOERS",
  "ppid_type": "ID",
  "ppid_components": {
    "type": "ID",
    "first_location": "NL-UT-RHE",
    "first_date": "197X",
    "last_location": "NL-UT-RHE",
    "last_date": "XXXX",
    "name_tokens": [
      "SANDRA",
      "BOERS"
    ],
    "first_date_source": "inferred_birth_decade.primary_value",
    "first_location_source": "inferred_birth_settlement",
    "last_location_source": "inferred_current_settlement",
    "first_date_alternatives": [
      "196X"
    ]
  },
  "name": "Sandra Boers",
  "birth_date": {
    "edtf": "XXXX",
    "precision": "unknown",
    "note": "See inferred_birth_decade for heuristic estimate"
  },
  "is_living": true,
  "heritage_relevance": {
    "is_heritage_relevant": true,
    "heritage_types": [
      "E"
    ],
    "rationale": "Identified as heritage staff at DANS"
  },
  "affiliations": [],
  "profile_data": {
    "name": "Sandra Boers",
    "linkedin_url": "https://www.linkedin.com/in/sandra-boers-5820317b",
    "headline": "Taaldans® en Rekendans® docent bij Dans\nLeerkracht Primair Onderwijs \n Specialisatie jonge kind Schrijfdansdocent",
    "location": "Rhenen, Utrecht, Netherlands (NL)",
    "connections": "305 connections • 299 followers",
    "about": "Leerkracht primair onderwijs Dansdocente peuter/kleuterdans Taaldans® en Rekendans® docent Schrijfdans docent Total Experience: 33 years and 1 month",
    "experience": [
      {
        "title": "Schrijfdans Docent",
        "company": "Thuis",
        "date_range": "Apr 2022 - Present • 3 years and 7 months"
      },
      {
        "title": "Dansdocente",
        "company": "Thuis (Current)",
        "date_range": "May 2019 - Present • 6 years and 6 months",
        "location": "Rhenen, Provincie Utrecht, Nederland"
      },
      {
        "title": "Taaldans En Rekendans Docent",
        "company": "Dans (Current)",
        "date_range": "Jan 2020 - Present • 5 years and 10 months",
        "description": "Yes...in the pocket!!! Officieel Taaldans® en Rekendans® docent. Afgelopen maanden zoiets gaafs gedaan...een absolute meerwaarde voor basisscholen, kinderdagverblijven en peuterspeelzalen. Ben je benieuwd naar wat Taaldans® en Rekendans® kan bijdragen aan de ontwikkeling van kinderen.... Ik kom graag langs voor een gesprek!🙂 #studio swing # inthepocket # Taaldans® en Rekendans® # bewegend leren# Yes."
      }
    ],
    "education": [
      {
        "degree": "Certificaat",
        "institution": "Schrijfdans docent"
      },
      {
        "degree": "Nascholing, Taaldans® en Rekendans®, Certificaat behaald januari 2020",
        "institution": "Studio Swing: ontwerpstudio voor creatief bewegend leren.",
        "date_range": "2019 - 2020 • 1 year"
      },
      {
        "degree": "Leerkracht basisonderwijs",
        "institution": "KPA Arnhem",
        "date_range": "1988 - 1992 • 4 years"
      }
    ],
    "skills": [
      "swing"
    ],
    "languages": [],
    "profile_image_url": "https://media.licdn.com/dms/image/v2/C4D03AQH3LAlluESD5A/profile-displayphoto-shrink_200_200/profile-displayphoto-shrink_200_200/0/1568658171667?e=2147483647&v=beta&t=Izq4sboX8EDhM5JYm68Q4nWQFSSYGsHtiZwiMqPrrvI"
  },
  "web_claims": [],
  "source_observations": [
    {
      "source_file": "/Users/kempersc/apps/glam/data/custodian/person/entity/sandra-boers-5820317b_20251214T110514Z.json",
      "observed_on": "2025-12-14T11:05:14.635347+00:00",
      "extraction_agent": "claude-sonnet-4-20250514"
    }
  ],
  "enrichment_metadata": {
    "birth_date_search": {
      "attempted": false,
      "notes": "Not yet searched - requires manual enrichment"
    }
  },
  "provenance": {
    "created_at": "2026-01-09T17:29:48.521558+00:00",
    "created_by": "generate_ppids.py",
    "source_files": [
      "/Users/kempersc/apps/glam/data/custodian/person/entity/sandra-boers-5820317b_20251214T110514Z.json"
    ],
    "modified_at": "2026-01-09T19:50:50.587948+00:00",
    "modified_by": "enrich_ppids.py"
  },
  "linkedin_slug": "sandra-boers-5820317b",
  "ppid_history": [
    {
      "previous_ppid": "ID_XX-XX-XXX_XXXX_XX-XX-XXX_XXXX_SANDRA-BOERS",
      "new_ppid": "ID_NL-UT-RHE_197X_NL-UT-RHE_XXXX_SANDRA-BOERS",
      "changed_at": "2026-01-09T17:42:58.105776+00:00",
      "reason": "observation_based_inference",
      "inferred_fields": [
        "inferred_birth_decade",
        "inferred_birth_settlement",
        "inferred_current_settlement"
      ]
    }
  ],
  "inferred_birth_decade": {
    "values": [
      "196X",
      "197X"
    ],
    "edtf": "[196X,197X]",
    "edtf_meaning": "one of: 1960s or 1970s",
    "precision": "decade_set",
    "primary_value": "197X",
    "primary_rationale": "1970 is in 197X, but range extends into 196X",
    "confidence": "very_low",
    "inference_provenance": {
      "method": "earliest_education_heuristic",
      "inference_chain": [
        {
          "step": 1,
          "observation": "Education record found",
          "source_field": "profile_data.education",
          "source_value": {
            "institution": "KPA Arnhem",
            "degree": "Leerkracht basisonderwijs",
            "date_range": "1988 - 1992 • 4 years"
          }
        },
        {
          "step": 2,
          "extraction": "Start year extracted from date_range",
          "extracted_value": 1988
        },
        {
          "step": 3,
          "assumption": "Education entry age is approximately 18 (±3 years)",
          "rationale": "Standard entry age for this education level in Netherlands/Europe",
          "confidence_impact": "Assumption introduces uncertainty; actual age may vary ±3 years"
        },
        {
          "step": 4,
          "calculation": "1988 - 18 = 1970",
          "result": "Estimated birth year: 1970",
          "range": "1967-1973 (accounting for ±3 year variance)"
        },
        {
          "step": 5,
          "generalization": "Birth year range spans decade boundary",
          "input_range": [
            1967,
            1973
          ],
          "output": [
            "196X",
            "197X"
          ],
          "edtf": "[196X,197X]",
          "rationale": "Cannot determine which decade with certainty; using EDTF 'one of' set notation"
        }
      ],
      "assumptions": [
        "Entry age for education/first job: 18 years (±3)",
        "Career records are complete in LinkedIn profile"
      ],
      "boundary_note": "Birth year estimate 1970 spans decades 196X/197X",
      "inferred_at": "2026-01-09T19:50:50.587943+00:00",
      "inferred_by": "enrich_ppids.py"
    }
  },
  "extraction_provenance": {
    "source_files": [
      "/Users/kempersc/apps/glam/data/custodian/person/affiliated/parsed/missing_entity_profiles.json"
    ],
    "modified_at": "2026-01-10T12:55:37.260141+00:00",
    "modified_by": "process_entity_to_ppid.py"
  }
}