{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-shepherd-pass-access",
        "evidence_ids": [
          "evidence-shepherd-pass-access"
        ],
        "predicate": "vehicle_access",
        "spatial_scope_ids": [],
        "subject_id": "trailhead-shepherd-pass-hiker",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-09-20"
        },
        "value": {
          "high_clearance_recommended": true,
          "trailhead_water": false,
          "winter_maintenance": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-shepherd-pass-access",
          "evidence_id": "evidence-shepherd-pass-access",
          "notes": "",
          "observation_id": "observation-usfs-shepherd-pass-trail",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Official trail guide describes access, mileage, facilities, restrictions, and the trail entering Sequoia National Park.",
          "observation_id": "observation-usfs-shepherd-pass-trail",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-usfs-shepherd-pass-trail"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/media/122866",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-shepherd-pass-trail"
        }
      ],
      "subject": {
        "entity_id": "trailhead-shepherd-pass-hiker",
        "kind": "trailhead",
        "name": "Shepherd Pass Hiker Trailhead"
      }
    }
  ],
  "entity": {
    "entity_id": "trailhead-shepherd-pass-hiker",
    "kind": "trailhead",
    "name": "Shepherd Pass Hiker Trailhead"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-sierra-reference-fixtures",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/trailhead-shepherd-pass-hiker.json",
      "reason": "Publish the official-source Williamson/Tyndall and Whitney reference fixtures with route- and activity-specific permit semantics.",
      "record_id": "trailhead-shepherd-pass-hiker",
      "record_type": "entity",
      "summary": "Add official-source Williamson/Tyndall shared-access and Whitney route/activity permit fixtures."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-sierra-reference-fixtures",
      "evidence_refs": [
        "evidence-shepherd-pass-access"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-shepherd-pass-access.json",
      "reason": "Publish the official-source Williamson/Tyndall and Whitney reference fixtures with route- and activity-specific permit semantics.",
      "record_id": "claim-shepherd-pass-access",
      "record_type": "claim",
      "summary": "Add official-source Williamson/Tyndall shared-access and Whitney route/activity permit fixtures."
    }
  ],
  "journey": [],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-shepherd-pass-route-profile"
      ],
      "object_id": "trailhead-shepherd-pass-hiker",
      "predicate": "starts_at",
      "relationship_id": "relationship-shepherd-starts-hiker-trailhead",
      "subject_id": "route-shepherd-pass",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}