{
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    {
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          "evidence-del-valle-picnic-inventory"
        ],
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        ],
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        "temporal_scope": null,
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          "Agua Vista": {
            "capacity": 150,
            "side": "east"
          },
          "Arroyo Mocho": {
            "capacity": 150,
            "side": "east"
          },
          "Beach View": {
            "capacity": 50,
            "side": "east"
          },
          "Coyote Corner": {
            "capacity": 50,
            "side": "east"
          },
          "Fiesta Grande": {
            "capacity": 500,
            "side": "east"
          },
          "Gray Pine": {
            "capacity": 50,
            "side": "west"
          },
          "Lichen Bark": {
            "capacity": 300,
            "side": "west"
          },
          "Oak Point": {
            "capacity": 150,
            "side": "east"
          },
          "School House Flats": {
            "capacity": 150,
            "side": "west"
          },
          "Shady Oak": {
            "capacity": 75,
            "side": "west"
          },
          "Valley Oak": {
            "capacity": 75,
            "side": "west"
          },
          "Vista Del Lago": {
            "capacity": 35,
            "side": "west"
          }
        }
      },
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          "claim_id": "claim-del-valle-picnic-inventory",
          "evidence_id": "evidence-del-valle-picnic-inventory",
          "notes": "",
          "observation_id": "observation-del-valle-picnic-inventory",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page lists twelve reservable Del Valle picnic areas, six on each side, with capacities from 35 to 500 people. Beer and wine are allowed without an additional permit; reservations are by phone.",
          "observation_id": "observation-del-valle-picnic-inventory",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-picnic-areas"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/recreation/picnics/del-valle-picnic-areas",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-picnic-areas"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-picnic-reservation-alcohol",
        "evidence_ids": [
          "evidence-del-valle-picnic-reservation-alcohol"
        ],
        "predicate": "picnic_reservation_rules",
        "spatial_scope_ids": [
          "scope-del-valle-picnic-areas"
        ],
        "subject_id": "park-del-valle-regional-park",
        "temporal_scope": null,
        "value": {
          "additional_alcohol_permit_required": false,
          "beer_and_wine_allowed": true,
          "channel": "phone",
          "sites": 12
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-picnic-reservation-alcohol",
          "evidence_id": "evidence-del-valle-picnic-reservation-alcohol",
          "notes": "",
          "observation_id": "observation-del-valle-picnic-inventory",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page lists twelve reservable Del Valle picnic areas, six on each side, with capacities from 35 to 500 people. Beer and wine are allowed without an additional permit; reservations are by phone.",
          "observation_id": "observation-del-valle-picnic-inventory",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-picnic-areas"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/recreation/picnics/del-valle-picnic-areas",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-picnic-areas"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-del-valle-regional-park",
      "kind": "park",
      "name": "Del Valle Regional Park"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-del-valle-map-picnic-fishing",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-del-valle-picnic-inventory.json",
      "reason": "Add the April 2026 Del Valle map plus official picnic and fishing evidence, preserving applicability gaps.",
      "record_id": "observation-del-valle-picnic-inventory",
      "record_type": "observation",
      "summary": "Ingest the April 2026 park map, picnic inventory, and fishing requirements with explicit conflicts and spatial gaps."
    }
  ],
  "navigation": {
    "next_id": "observation-del-valle-quiet-generators",
    "position": 40,
    "previous_id": "observation-del-valle-picnic-access",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The page lists twelve reservable Del Valle picnic areas, six on each side, with capacities from 35 to 500 people. Beer and wine are allowed without an additional permit; reservations are by phone.",
      "observation_id": "observation-del-valle-picnic-inventory",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-del-valle-picnic-areas"
    }
  ],
  "record": {
    "artifact_refs": [],
    "content": "The page lists twelve reservable Del Valle picnic areas, six on each side, with capacities from 35 to 500 people. Beer and wine are allowed without an additional permit; reservations are by phone.",
    "observation_id": "observation-del-valle-picnic-inventory",
    "observed_at": null,
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-del-valle-picnic-areas"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/recreation/picnics/del-valle-picnic-areas",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-del-valle-picnic-areas"
    }
  ]
}