{
  "answerability": "evidence_backed_claims_available",
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    {
      "claim": {
        "claim_id": "claim-emigrant-northern-waterhouse-topology",
        "evidence_ids": [
          "evidence-emigrant-northern-waterhouse-topology"
        ],
        "predicate": "mapped_route_connector",
        "spatial_scope_ids": [
          "scope-route-emigrant-waterhouse-waterhouse-lake"
        ],
        "subject_id": "route-segment-emigrant-northern-waterhouse",
        "temporal_scope": null,
        "value": {
          "distance_miles": null,
          "distance_status": "not_printed",
          "end_node_id": "route-node-emigrant-waterhouse-trail-end",
          "route_role": "official_mainline",
          "start_node_id": "trailhead-emigrant-waterhouse",
          "support": "19E31 from the mapped Waterhouse trailhead to its named lake trail terminus"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-waterhouse-topology",
          "evidence_id": "evidence-emigrant-northern-waterhouse-topology",
          "notes": "",
          "observation_id": "observation-emigrant-northern-waterhouse-topology",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "19E31 from the mapped Waterhouse trailhead to its named lake trail terminus Atomic mileage remains unknown; cumulative reports and GIS lengths are not subtracted or measured.",
          "observation_id": "observation-emigrant-northern-waterhouse-topology",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:34:28+00:00",
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        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
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        }
      ],
      "subject": {
        "entity_id": "route-segment-emigrant-northern-waterhouse",
        "kind": "route_segment",
        "name": "Waterhouse"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
        "evidence_ids": [
          "evidence-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context"
        ],
        "predicate": "mapped_wilderness_traversal_context",
        "spatial_scope_ids": [
          "scope-emigrant-wilderness"
        ],
        "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
        "temporal_scope": null,
        "value": {
          "other_jurisdiction_permission": "not established",
          "whole_route_containment": false,
          "wilderness_id": "wilderness-emigrant"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
          "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
          "notes": "",
          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "2010 overview shows this selected approach entering or following Emigrant Wilderness. Sonora PCT follows a jurisdictional divide; Emigrant context does not resolve Hoover permission.",
          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:34:28+00:00",
          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
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          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "subject": {
        "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
        "kind": "route",
        "name": "Waterhouse Trailhead to Waterhouse Lake"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
        "evidence_ids": [
          "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions"
        ],
        "predicate": "pretrip_current_conditions_recheck",
        "spatial_scope_ids": [
          "scope-route-emigrant-waterhouse-waterhouse-lake"
        ],
        "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
        "temporal_scope": null,
        "value": {
          "current_status": "unknown",
          "required": true,
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            "access roads",
            "trail and crossings",
            "water",
            "fire restrictions",
            "snow and closures"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
          "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions",
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          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Check current Forest Service orders and conditions against the selected access and intended itinerary. Historical map connections do not establish current crossings, snow, water, fire restrictions or trail clearance.",
          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:34:28+00:00",
          "source_id": "source-usfs-emigrant-alerts"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-alerts"
        }
      ],
      "subject": {
        "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
        "kind": "route",
        "name": "Waterhouse Trailhead to Waterhouse Lake"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-waterhouse-geometry",
        "evidence_ids": [
          "evidence-emigrant-northern-waterhouse-geometry"
        ],
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        "spatial_scope_ids": [
          "scope-route-emigrant-waterhouse-waterhouse-lake"
        ],
        "subject_id": "route-segment-emigrant-northern-waterhouse",
        "temporal_scope": null,
        "value": {
          "coordinate_reference_system": "EPSG:4326",
          "current_route_status": "unknown; pre-trip check required",
          "end_coordinate": {
            "latitude": 38.223389724783125,
            "longitude": -119.90346031570981
          },
          "geometry_snapshot": {
            "feature_id": "usfs-emigrant-northern-waterhouse",
            "path": "geometry/v0/snapshots/usfs-emigrant-northern-routes-20261006.geojson",
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          },
          "navigation_grade": false,
          "route_role": "official_mainline",
          "source_coordinate_accuracy": "unknown",
          "source_feature_id": 9428140,
          "source_globalid": "{7D5C8931-FE33-4617-B426-1AB1394BD898}",
          "source_vertex_range_inclusive": [
            0,
            147
          ],
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          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-waterhouse-geometry",
          "evidence_id": "evidence-emigrant-northern-waterhouse-geometry",
          "notes": "",
          "observation_id": "observation-emigrant-northern-waterhouse-geometry",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "USFS National Forest System Trails object 9428140, globalid {7D5C8931-FE33-4617-B426-1AB1394BD898}, 19E31 WATERHOUSE LAKE; reviewed inclusive normalized vertices 0–147. Endpoint assignments are descriptive and source lengths apply to the original feature.",
          "observation_id": "observation-emigrant-northern-waterhouse-geometry",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:14:14+00:00",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ],
      "sources": [
        {
          "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ],
      "subject": {
        "entity_id": "route-segment-emigrant-northern-waterhouse",
        "kind": "route_segment",
        "name": "Waterhouse"
      }
    },
    {
      "claim": {
        "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
        "evidence_ids": [
          "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile"
        ],
        "predicate": "route_description",
        "spatial_scope_ids": [
          "scope-route-emigrant-waterhouse-waterhouse-lake"
        ],
        "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
        "temporal_scope": null,
        "value": {
          "current_conditions": "unknown",
          "directionality": "bidirectional mapped trail",
          "display_geometry": "reviewed, non-navigation-grade",
          "end_node_id": "route-node-emigrant-waterhouse-trail-end",
          "endpoint_status": "trail approach; not campsite or resource centroid",
          "entry_id": "trailhead-emigrant-waterhouse",
          "name_status": "Wayproof descriptive approach",
          "objective_id": "waterbody-emigrant-waterhouse-lake",
          "source_edition": "2010"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
          "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile",
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          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-profile",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "2010 Emigrant map northern panel explicitly draws the selected named trails. Waterhouse Trailhead to Waterhouse Lake is a Wayproof descriptive approach, not an official named itinerary. Kennedy parking connection is separately supported by Traveler 2023; the Eagle approach stops at the northern side of the boundary pass.",
          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-profile",
          "observed_at": null,
          "observer": "Wayproof primary-source text, geospatial map and named-feature review",
          "retrieved_at": "2026-10-06T15:34:28+00:00",
          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
          "publisher": "USDA Forest Service, Stanislaus National Forest",
          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
      "subject": {
        "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
        "kind": "route",
        "name": "Waterhouse Trailhead to Waterhouse Lake"
      }
    }
  ],
  "entity": {
    "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
    "kind": "route",
    "name": "Waterhouse Trailhead to Waterhouse Lake"
  },
  "gap_details": [
    {
      "claims": [
        {
          "claim": {
            "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
            "evidence_ids": [
              "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-route-emigrant-waterhouse-waterhouse-lake"
            ],
            "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
            "temporal_scope": null,
            "value": {
              "current_status": "unknown",
              "required": true,
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                "access roads",
                "trail and crossings",
                "water",
                "fire restrictions",
                "snow and closures"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "notes": "",
              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Check current Forest Service orders and conditions against the selected access and intended itinerary. Historical map connections do not establish current crossings, snow, water, fire restrictions or trail clearance.",
              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "observed_at": null,
              "observer": "Wayproof primary-source text, geospatial map and named-feature review",
              "retrieved_at": "2026-10-06T15:34:28+00:00",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ]
        },
        {
          "claim": {
            "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
            "evidence_ids": [
              "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile"
            ],
            "predicate": "route_description",
            "spatial_scope_ids": [
              "scope-route-emigrant-waterhouse-waterhouse-lake"
            ],
            "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
            "temporal_scope": null,
            "value": {
              "current_conditions": "unknown",
              "directionality": "bidirectional mapped trail",
              "display_geometry": "reviewed, non-navigation-grade",
              "end_node_id": "route-node-emigrant-waterhouse-trail-end",
              "endpoint_status": "trail approach; not campsite or resource centroid",
              "entry_id": "trailhead-emigrant-waterhouse",
              "name_status": "Wayproof descriptive approach",
              "objective_id": "waterbody-emigrant-waterhouse-lake",
              "source_edition": "2010"
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
              "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile",
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              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-profile",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "2010 Emigrant map northern panel explicitly draws the selected named trails. Waterhouse Trailhead to Waterhouse Lake is a Wayproof descriptive approach, not an official named itinerary. Kennedy parking connection is separately supported by Traveler 2023; the Eagle approach stops at the northern side of the boundary pass.",
              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-profile",
              "observed_at": null,
              "observer": "Wayproof primary-source text, geospatial map and named-feature review",
              "retrieved_at": "2026-10-06T15:34:28+00:00",
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          ],
          "sources": [
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              "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
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      ],
      "entities": [
        {
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        }
      ],
      "history": [
        {
          "action": "ADD",
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          "knowledge_gap_refs": [
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          ],
          "path": "canonical/v0/gaps/gap-emigrant-northern-waterhouse-waterhouse-lake-planning.json",
          "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
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          "record_type": "gap",
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        }
      ],
      "navigation": {
        "next_id": "gap-emigrant-order-date-conflict",
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        "previous_id": "gap-emigrant-northern-waterhouse-road-number",
        "total": 299
      },
      "observations": [
        {
          "artifact_refs": [],
          "content": "Check current Forest Service orders and conditions against the selected access and intended itinerary. Historical map connections do not establish current crossings, snow, water, fire restrictions or trail clearance.",
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          "source_id": "source-usfs-emigrant-alerts"
        },
        {
          "artifact_refs": [],
          "content": "2010 Emigrant map northern panel explicitly draws the selected named trails. Waterhouse Trailhead to Waterhouse Lake is a Wayproof descriptive approach, not an official named itinerary. Kennedy parking connection is separately supported by Traveler 2023; the Eagle approach stops at the northern side of the boundary pass.",
          "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-profile",
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          "source_id": "source-usfs-emigrant-overview-map"
        }
      ],
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        "question": "What remains unverified for Waterhouse Trailhead to Waterhouse Lake?",
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        "related_ids": [
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        ]
      },
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            ],
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            "temporal_scope": null,
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              "current_conditions": "unknown",
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          "record": {
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            ],
            "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
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          },
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      ],
      "sources": [
        {
          "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
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        },
        {
          "locator": "https://www.fs.usda.gov/sites/nfs/files/legacy-media/stanislaus/Emigrant%20Wilderness%20GEOSPATIAL.pdf",
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          "source_id": "source-usfs-emigrant-overview-map"
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      ]
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    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
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      "record_id": "route-emigrant-waterhouse-waterhouse-lake",
      "record_type": "entity",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
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      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-waterhouse-topology.json",
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      "record_type": "claim",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [
        "evidence-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context.json",
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      "record_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-wilderness-context",
      "record_type": "claim",
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    },
    {
      "action": "ADD",
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      ],
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    },
    {
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      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-waterhouse-geometry.json",
      "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
      "record_id": "claim-emigrant-northern-waterhouse-geometry",
      "record_type": "claim",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-northern-coverage",
      "evidence_refs": [
        "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-northern-waterhouse-waterhouse-lake-profile.json",
      "reason": "Add bounded northern approaches, geometry and historical access evidence; preserve unresolved planning limits.",
      "record_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
      "record_type": "claim",
      "summary": "Add six northern Emigrant approaches, four with reviewed display geometry, plus distinct historical facilities and access conflicts."
    }
  ],
  "journey": [
    {
      "claims": [
        {
          "claim": {
            "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
            "evidence_ids": [
              "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-route-emigrant-waterhouse-waterhouse-lake"
            ],
            "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
            "temporal_scope": null,
            "value": {
              "current_status": "unknown",
              "required": true,
              "topics": [
                "access roads",
                "trail and crossings",
                "water",
                "fire restrictions",
                "snow and closures"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "evidence_id": "evidence-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "notes": "",
              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Check current Forest Service orders and conditions against the selected access and intended itinerary. Historical map connections do not establish current crossings, snow, water, fire restrictions or trail clearance.",
              "observation_id": "observation-emigrant-northern-waterhouse-waterhouse-lake-conditions",
              "observed_at": null,
              "observer": "Wayproof primary-source text, geospatial map and named-feature review",
              "retrieved_at": "2026-10-06T15:34:28+00:00",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "subject": {
            "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
            "kind": "route",
            "name": "Waterhouse Trailhead to Waterhouse Lake"
          }
        }
      ],
      "entity": {
        "entity_id": "route-emigrant-waterhouse-waterhouse-lake",
        "kind": "route",
        "name": "Waterhouse Trailhead to Waterhouse Lake"
      },
      "gaps": [
        {
          "gap_id": "gap-emigrant-northern-waterhouse-waterhouse-lake-planning",
          "question": "What remains unverified for Waterhouse Trailhead to Waterhouse Lake?",
          "reason": "The selected approach has a sourced bidirectional graph; atomic mileage, return itinerary, shoreline paths, individual campsites and current conditions remain unknown. Source destination mileages may refer to a different precise endpoint.",
          "related_ids": [
            "claim-emigrant-northern-waterhouse-waterhouse-lake-profile",
            "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions"
          ]
        }
      ],
      "relationships": [],
      "role": "Selected place"
    },
    {
      "claims": [
        {
          "claim": {
            "claim_id": "claim-emigrant-approach-recheck-waterhouse",
            "evidence_ids": [
              "evidence-emigrant-approach-recheck-waterhouse"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-emigrant-waterhouse"
            ],
            "subject_id": "trailhead-emigrant-waterhouse",
            "temporal_scope": null,
            "value": {
              "required": true,
              "status": "unknown",
              "topics": [
                "road and trail status",
                "fire restrictions",
                "parking and facility availability"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-approach-recheck-waterhouse",
              "evidence_id": "evidence-emigrant-approach-recheck-waterhouse",
              "notes": "",
              "observation_id": "observation-emigrant-approach-recheck-waterhouse",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "The forest alert index contains dynamic road and fire orders. Current applicability to Waterhouse Trailhead needs individual order and map review; its named access relationship is not an open-status observation.",
              "observation_id": "observation-emigrant-approach-recheck-waterhouse",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "subject": {
            "entity_id": "trailhead-emigrant-waterhouse",
            "kind": "trailhead",
            "name": "Waterhouse Trailhead"
          }
        }
      ],
      "entity": {
        "entity_id": "trailhead-emigrant-waterhouse",
        "kind": "trailhead",
        "name": "Waterhouse Trailhead"
      },
      "gaps": [
        {
          "gap_id": "gap-emigrant-current-conditions",
          "question": "Are the selected approach and facilities usable on the trip date?",
          "reason": "Current road, trail, snow, crossing, water, fire and facility status is unknown. Individual alerts and mapped closures need route-specific matching; the Site Open banner is not route-level clearance.",
          "related_ids": [
            "wilderness-emigrant",
            "claim-emigrant-conditions-recheck",
            "claim-emigrant-alerts-recheck",
            "claim-emigrant-access-recheck",
            "claim-emigrant-approach-recheck-bell-meadow",
            "claim-emigrant-approach-recheck-bourland-meadow",
            "claim-emigrant-approach-recheck-box-springs",
            "claim-emigrant-approach-recheck-crabtree",
            "claim-emigrant-approach-recheck-coyote-meadow",
            "claim-emigrant-approach-recheck-eagle-meadow",
            "claim-emigrant-approach-recheck-gianelli",
            "claim-emigrant-approach-recheck-kennedy-meadows",
            "claim-emigrant-approach-recheck-waterhouse",
            "claim-emigrant-approach-recheck-sonora-pass"
          ]
        }
      ],
      "relationships": [
        {
          "evidence_ids": [
            "evidence-emigrant-northern-waterhouse-waterhouse-lake-profile"
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          "object_id": "trailhead-emigrant-waterhouse",
          "predicate": "starts_at",
          "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-start",
          "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
          "temporal_scope": null
        }
      ],
      "role": "Entry"
    },
    {
      "claims": [
        {
          "claim": {
            "claim_id": "claim-emigrant-dogs",
            "evidence_ids": [
              "evidence-emigrant-dogs"
            ],
            "predicate": "pet_policy",
            "spatial_scope_ids": [
              "scope-emigrant-wilderness"
            ],
            "subject_id": "wilderness-emigrant",
            "temporal_scope": null,
            "value": {
              "county_leash_ordinance": "Tuolumne County; verify details",
              "direct_control_required": true
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-dogs",
              "evidence_id": "evidence-emigrant-dogs",
              "notes": "",
              "observation_id": "observation-emigrant-dogs",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Pet Information: dogs must be under direct control and Tuolumne County has a leash ordinance.",
              "observation_id": "observation-emigrant-dogs",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-access"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/recreation/emigrant-wilderness-highway-108-access",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-access"
            }
          ],
          "subject": {
            "entity_id": "wilderness-emigrant",
            "kind": "wilderness",
            "name": "Emigrant Wilderness"
          }
        },
        {
          "claim": {
            "claim_id": "claim-emigrant-access-recheck",
            "evidence_ids": [
              "evidence-emigrant-access-recheck"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-emigrant-wilderness"
            ],
            "subject_id": "wilderness-emigrant",
            "temporal_scope": null,
            "value": {
              "required": true,
              "topics": [
                "access roads",
                "parking",
                "trail conditions",
                "water and facilities",
                "issuing station operations"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-access-recheck",
              "evidence_id": "evidence-emigrant-access-recheck",
              "notes": "",
              "observation_id": "observation-emigrant-access-recheck",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Operational Hours directs visitors to check conditions and weather before travel; named access points do not establish that a road, parking space, water supply or facility will be available.",
              "observation_id": "observation-emigrant-access-recheck",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-access"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/recreation/emigrant-wilderness-highway-108-access",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-access"
            }
          ],
          "subject": {
            "entity_id": "wilderness-emigrant",
            "kind": "wilderness",
            "name": "Emigrant Wilderness"
          }
        },
        {
          "claim": {
            "claim_id": "claim-emigrant-alerts-recheck",
            "evidence_ids": [
              "evidence-emigrant-alerts-recheck"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-emigrant-wilderness"
            ],
            "subject_id": "wilderness-emigrant",
            "temporal_scope": null,
            "value": {
              "current_route_access": "unknown",
              "required": true,
              "topics": [
                "road closures and seasonal access",
                "current fire orders",
                "occupancy rules"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-alerts-recheck",
              "evidence_id": "evidence-emigrant-alerts-recheck",
              "notes": "",
              "observation_id": "observation-emigrant-alerts-recheck",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Alerts index reviewed October 5, 2026 includes fire restrictions, occupancy limits and road closure orders, including a portion of 4N12 and Cherry access road 1N98. Exact applicability and current status require individual order/map review.",
              "observation_id": "observation-emigrant-alerts-recheck",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/alerts",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-alerts"
            }
          ],
          "subject": {
            "entity_id": "wilderness-emigrant",
            "kind": "wilderness",
            "name": "Emigrant Wilderness"
          }
        },
        {
          "claim": {
            "claim_id": "claim-emigrant-conditions-recheck",
            "evidence_ids": [
              "evidence-emigrant-conditions-recheck"
            ],
            "predicate": "pretrip_current_conditions_recheck",
            "spatial_scope_ids": [
              "scope-emigrant-wilderness"
            ],
            "subject_id": "wilderness-emigrant",
            "temporal_scope": null,
            "value": {
              "required": true,
              "topics": [
                "fire restrictions",
                "smoke",
                "snow",
                "weather and avalanche conditions"
              ]
            }
          },
          "evidence": [
            {
              "claim_id": "claim-emigrant-conditions-recheck",
              "evidence_id": "evidence-emigrant-conditions-recheck",
              "notes": "",
              "observation_id": "observation-emigrant-conditions-recheck",
              "stance": "supports"
            }
          ],
          "observations": [
            {
              "artifact_refs": [],
              "content": "Current Conditions links to current fire restrictions, fire/smoke, avalanche forecasts and regional snow depth. These are pre-trip checking sources, not an observation of open roads or safe trails.",
              "observation_id": "observation-emigrant-conditions-recheck",
              "observed_at": null,
              "observer": "Wayproof primary-source review",
              "retrieved_at": "2026-10-05T22:09:18+00:00",
              "source_id": "source-usfs-emigrant-conditions"
            }
          ],
          "sources": [
            {
              "locator": "https://www.fs.usda.gov/r05/stanislaus/conditions",
              "publisher": "USDA Forest Service, Stanislaus National Forest",
              "source_id": "source-usfs-emigrant-conditions"
            }
          ],
          "subject": {
            "entity_id": "wilderness-emigrant",
            "kind": "wilderness",
            "name": "Emigrant Wilderness"
          }
        }
      ],
      "entity": {
        "entity_id": "wilderness-emigrant",
        "kind": "wilderness",
        "name": "Emigrant Wilderness"
      },
      "gaps": [
        {
          "gap_id": "gap-emigrant-current-conditions",
          "question": "Are the selected approach and facilities usable on the trip date?",
          "reason": "Current road, trail, snow, crossing, water, fire and facility status is unknown. Individual alerts and mapped closures need route-specific matching; the Site Open banner is not route-level clearance.",
          "related_ids": [
            "wilderness-emigrant",
            "claim-emigrant-conditions-recheck",
            "claim-emigrant-alerts-recheck",
            "claim-emigrant-access-recheck",
            "claim-emigrant-approach-recheck-bell-meadow",
            "claim-emigrant-approach-recheck-bourland-meadow",
            "claim-emigrant-approach-recheck-box-springs",
            "claim-emigrant-approach-recheck-crabtree",
            "claim-emigrant-approach-recheck-coyote-meadow",
            "claim-emigrant-approach-recheck-eagle-meadow",
            "claim-emigrant-approach-recheck-gianelli",
            "claim-emigrant-approach-recheck-kennedy-meadows",
            "claim-emigrant-approach-recheck-waterhouse",
            "claim-emigrant-approach-recheck-sonora-pass"
          ]
        },
        {
          "gap_id": "gap-emigrant-route-topology",
          "question": "How do the selected trailheads connect to lakes, passes and each other?",
          "reason": "The eight western approaches from Crabtree, Gianelli, Bell Meadow and six northern approaches are joined by five bounded southern/eastern approaches: Box Springs–Chain Lakes, Bourland mapped terminus, Shingle Springs–Kibbie/Huckleberry and Leavitt Lake–PCT junction. Bourland continuation, Kennedy parking/branch geometry, southern display gaps, deeper lake/pass branches, returns and individual facility spurs remain unresolved; no wilderness-wide route completeness is claimed.",
          "related_ids": [
            "wilderness-emigrant",
            "claim-emigrant-access-recheck"
          ]
        },
        {
          "gap_id": "gap-emigrant-boundary-geometry",
          "question": "What boundary precision and exact jurisdiction remain unverified?",
          "reason": "Reviewed PAD-US designated-wilderness display geometry now matches Emigrant Wilderness, OBJECTID 237112. Survey/legal precision, current amendments and exact route-side jurisdiction remain unverified. Polygon overlap does not create access, containment or permission.",
          "related_ids": [
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            "claim-emigrant-access-recheck"
          ]
        },
        {
          "gap_id": "gap-emigrant-facility-inventory",
          "question": "What camps, toilets, water sources and parking are available along the approach?",
          "reason": "Coverage includes historical trailhead facilities, Baker/Deadman/Cherry Valley campground reports, 45 individually reviewed Cherry Valley listing pages and Kennedy cabin inventory. Conflicting water/toilet/fee reports, omitted Cherry Valley site 001, individual Baker/Deadman sites, current availability, remote camps and facility connectors remain unresolved. Inventory is not a reservation or operating guarantee.",
          "related_ids": [
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            "claim-emigrant-access-recheck"
          ]
        }
      ],
      "relationships": [
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          "object_id": "wilderness-emigrant",
          "predicate": "traverses",
          "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-land",
          "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
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      ],
      "role": "Traversed place"
    }
  ],
  "knowledge_gaps": [
    {
      "gap_id": "gap-emigrant-northern-waterhouse-waterhouse-lake-planning",
      "question": "What remains unverified for Waterhouse Trailhead to Waterhouse Lake?",
      "reason": "The selected approach has a sourced bidirectional graph; atomic mileage, return itinerary, shoreline paths, individual campsites and current conditions remain unknown. Source destination mileages may refer to a different precise endpoint.",
      "related_ids": [
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        "claim-emigrant-northern-waterhouse-waterhouse-lake-conditions"
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  "relationships": [
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      "object_id": "route-emigrant-waterhouse-waterhouse-lake",
      "predicate": "approached_via",
      "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-objective",
      "subject_id": "waterbody-emigrant-waterhouse-lake",
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    },
    {
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      "object_id": "route-node-emigrant-waterhouse-trail-end",
      "predicate": "ends_at",
      "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-end",
      "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
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    },
    {
      "evidence_ids": [
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      "object_id": "route-emigrant-waterhouse-waterhouse-lake",
      "predicate": "part_of",
      "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-waterhouse",
      "subject_id": "route-segment-emigrant-northern-waterhouse",
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    },
    {
      "evidence_ids": [
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      "object_id": "trailhead-emigrant-waterhouse",
      "predicate": "starts_at",
      "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-start",
      "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
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    },
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      "object_id": "wilderness-emigrant",
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      "relationship_id": "relationship-emigrant-northern-waterhouse-waterhouse-lake-land",
      "subject_id": "route-emigrant-waterhouse-waterhouse-lake",
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    }
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