{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-del-valle-cabin-amenities",
        "evidence_ids": [
          "evidence-del-valle-cabin-amenities"
        ],
        "predicate": "cabin_amenities",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "bedding_provided": false,
          "extension_cords": false,
          "hvac": true,
          "inside_cooking": false,
          "interior_square_feet": 283.5,
          "open_flame_inside": false,
          "porch_square_feet": 81,
          "sleeps": 5,
          "surge_protectors": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-cabin-amenities",
          "evidence_id": "evidence-del-valle-cabin-amenities",
          "notes": "",
          "observation_id": "observation-del-valle-cabin-faq-amenities",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Each 283.5-square-foot cabin has an 81-square-foot porch, beds for five, HVAC, electrical amenities and detectors. Cooking, open flame, extension cords, and surge protectors are prohibited inside; guests bring bedding.",
          "observation_id": "observation-del-valle-cabin-faq-amenities",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-cabin-faq"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/recreation/camping/cabin-camping-faqs",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-cabin-faq"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "campground-del-valle-family",
      "kind": "campground",
      "name": "Del Valle Family Campground"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-del-valle-campground-corpus",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-del-valle-cabin-faq-amenities.json",
      "reason": "Add the official EBRPD Del Valle campground corpus, preserving dated conflicts and live recheck boundaries.",
      "record_id": "observation-del-valle-cabin-faq-amenities",
      "record_type": "observation",
      "summary": "Ingest eight official EBRPD campground sources with current, dated, conflicting, and volatile evidence kept distinct."
    }
  ],
  "navigation": {
    "next_id": "observation-del-valle-cabin-faq-operations",
    "position": 5,
    "previous_id": "observation-del-valle-boating-swimming",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Each 283.5-square-foot cabin has an 81-square-foot porch, beds for five, HVAC, electrical amenities and detectors. Cooking, open flame, extension cords, and surge protectors are prohibited inside; guests bring bedding.",
      "observation_id": "observation-del-valle-cabin-faq-amenities",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-del-valle-cabin-faq"
    }
  ],
  "record": {
    "artifact_refs": [],
    "content": "Each 283.5-square-foot cabin has an 81-square-foot porch, beds for five, HVAC, electrical amenities and detectors. Cooking, open flame, extension cords, and surge protectors are prohibited inside; guests bring bedding.",
    "observation_id": "observation-del-valle-cabin-faq-amenities",
    "observed_at": null,
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-del-valle-cabin-faq"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/recreation/camping/cabin-camping-faqs",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-del-valle-cabin-faq"
    }
  ]
}