{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-google-maps-mission-peak-stanford-restroom-20260920",
        "evidence_ids": [
          "evidence-google-maps-mission-peak-stanford-restroom-20260920"
        ],
        "predicate": "mapped_facility_observation",
        "spatial_scope_ids": [
          "scope-mission-peak-stanford-avenue-staging",
          "scope-mission-peak-stanford-restroom"
        ],
        "subject_id": "restroom-mission-peak-stanford-avenue",
        "temporal_scope": {
          "ends_on": "2026-09-20",
          "starts_on": "2026-09-20"
        },
        "value": {
          "community_reported_handwashing": false,
          "google_category": "Public bathroom",
          "google_lists_wheelchair_accessible_entrance": true,
          "latitude": 37.5041895,
          "longitude": -121.9081485,
          "pin_creation_date": null,
          "pin_creation_date_exposed": false,
          "visible_in_dated_photos": {
            "fixed_restroom_structure": true,
            "photo_dates": [
              "2021-09",
              "2022-03",
              "2023-01",
              "2025-07"
            ],
            "portable_toilet_units_minimum": 3
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-google-maps-mission-peak-stanford-restroom-20260920",
          "evidence_id": "evidence-google-maps-mission-peak-stanford-restroom-20260920",
          "notes": "The place record supports the label, coordinates, category, and accessibility attribute. Dated community photos support only the visible exterior facility types; the handwashing statement remains explicitly community-reported.",
          "observation_id": "observation-google-maps-mission-peak-stanford-restroom-20260920",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Google Maps place overview",
            "Five-photo gallery",
            "Community reviews"
          ],
          "content": "The user-supplied pin resolves to a Google Maps place named Restroom at 37.5041895, -121.9081485 on the Ohlone Wilderness Trail near Stanford Avenue. Google categorizes it as a public bathroom and displays a wheelchair-accessible-entrance attribute. Community photos visibly show a fixed restroom structure and at least three portable toilet units. Gallery metadata exposes photos dated September 2021, March 2022, and July 2025 plus imagery captured January 2023; Google does not expose the pin creation date. A review displayed as one year old reports that this is the last restroom before the trailhead and that it has no handwashing place; this is community-reported rather than independently verified.",
          "observation_id": "observation-google-maps-mission-peak-stanford-restroom-20260920",
          "observed_at": null,
          "observer": "Wayproof browser and visual source review",
          "retrieved_at": "2026-09-20T00:00:00-07:00",
          "source_id": "source-google-maps-mission-peak-stanford-restroom"
        }
      ],
      "sources": [
        {
          "locator": "https://maps.app.goo.gl/wGQ7kqyd96th75uF9?g_st=ic",
          "publisher": "Google Maps (user-supplied labeled place and community media)",
          "source_id": "source-google-maps-mission-peak-stanford-restroom"
        }
      ],
      "subject": {
        "entity_id": "restroom-mission-peak-stanford-avenue",
        "kind": "restroom",
        "name": "Stanford Avenue Staging Area Restroom"
      }
    },
    {
      "claim": {
        "claim_id": "claim-mission-peak-stanford-restroom-official-map-2026-08",
        "evidence_ids": [
          "evidence-ebrpd-mission-peak-map-stanford-restroom-2026-08"
        ],
        "predicate": "official_map_facility_presence",
        "spatial_scope_ids": [
          "scope-mission-peak-stanford-avenue-staging",
          "scope-mission-peak-stanford-restroom"
        ],
        "subject_id": "restroom-mission-peak-stanford-avenue",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-08-01"
        },
        "value": {
          "facility_type": "restroom",
          "map_revision": "2026-08",
          "mapped_present": true,
          "toilet_fixture_type_specified": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-mission-peak-stanford-restroom-official-map-2026-08",
          "evidence_id": "evidence-ebrpd-mission-peak-map-stanford-restroom-2026-08",
          "notes": "The official current park map depicts a restroom symbol at Stanford Avenue Staging Area, independently corroborating the Google Maps place record without asserting an interior fixture type.",
          "observation_id": "observation-ebrpd-mission-peak-map-2026-08",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1",
            "Map revision 2026-8",
            "Legend and mapped facility symbols"
          ],
          "content": "The current standalone Mission Peak map is marked 2026-8. It depicts a restroom at Stanford Avenue Staging Area and distinguishes restroom, drinking-water, horse-water, parking, trail-post, picnic-table, and reservable-camping symbols. It states 8.66 miles from Stanford Avenue Staging Area to Sunol Visitor Center and 3.59 miles between the Mission Peak Regional Preserve and Sunol Regional Wilderness boundaries. It also maps trail-use classes, individual segment mileages, emergency trail-post numbers, the Eagle Spring Backpack Camp, and prohibited access from Mill Creek Road.",
          "observation_id": "observation-ebrpd-mission-peak-map-2026-08",
          "observed_at": null,
          "observer": "Wayproof PDF visual review",
          "retrieved_at": "2026-09-20T00:00:00-07:00",
          "source_id": "source-ebrpd-mission-peak-map-2026-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/maps/mission-peak-map.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-mission-peak-map-2026-08"
        }
      ],
      "subject": {
        "entity_id": "restroom-mission-peak-stanford-avenue",
        "kind": "restroom",
        "name": "Stanford Avenue Staging Area Restroom"
      }
    },
    {
      "claim": {
        "claim_id": "claim-mission-peak-map-route-distances-2026-08",
        "evidence_ids": [
          "evidence-ebrpd-mission-peak-map-route-distances-2026-08"
        ],
        "predicate": "official_map_route_distances",
        "spatial_scope_ids": [
          "scope-mission-peak-stanford-avenue-staging",
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "park-mission-peak-regional-preserve",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-08-01"
        },
        "value": {
          "mission_peak_to_sunol_boundary_miles": 3.59,
          "stanford_staging_to_sunol_visitor_center_miles": 8.66
        }
      },
      "evidence": [
        {
          "claim_id": "claim-mission-peak-map-route-distances-2026-08",
          "evidence_id": "evidence-ebrpd-mission-peak-map-route-distances-2026-08",
          "notes": "The official current map directly labels the Stanford-to-Sunol Visitor Center and park-boundary-to-boundary distances.",
          "observation_id": "observation-ebrpd-mission-peak-map-2026-08",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1",
            "Map revision 2026-8",
            "Legend and mapped facility symbols"
          ],
          "content": "The current standalone Mission Peak map is marked 2026-8. It depicts a restroom at Stanford Avenue Staging Area and distinguishes restroom, drinking-water, horse-water, parking, trail-post, picnic-table, and reservable-camping symbols. It states 8.66 miles from Stanford Avenue Staging Area to Sunol Visitor Center and 3.59 miles between the Mission Peak Regional Preserve and Sunol Regional Wilderness boundaries. It also maps trail-use classes, individual segment mileages, emergency trail-post numbers, the Eagle Spring Backpack Camp, and prohibited access from Mill Creek Road.",
          "observation_id": "observation-ebrpd-mission-peak-map-2026-08",
          "observed_at": null,
          "observer": "Wayproof PDF visual review",
          "retrieved_at": "2026-09-20T00:00:00-07:00",
          "source_id": "source-ebrpd-mission-peak-map-2026-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/maps/mission-peak-map.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-mission-peak-map-2026-08"
        }
      ],
      "subject": {
        "entity_id": "park-mission-peak-regional-preserve",
        "kind": "park",
        "name": "Mission Peak Regional Preserve"
      }
    },
    {
      "claim": {
        "claim_id": "claim-mission-peak-stanford-map-point",
        "evidence_ids": [
          "evidence-mission-peak-stanford-map-point"
        ],
        "predicate": "official_page_linked_map_point",
        "spatial_scope_ids": [
          "scope-mission-peak-stanford-avenue-staging"
        ],
        "subject_id": "staging-mission-peak-stanford-avenue",
        "temporal_scope": null,
        "value": {
          "latitude": 37.5044641253631,
          "longitude": -121.908478932501,
          "source_ids": [
            "source-google-maps-mission-peak-stanford-entrance",
            "source-google-maps-mission-peak-stanford-directions"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-mission-peak-stanford-map-point",
          "evidence_id": "evidence-mission-peak-stanford-map-point",
          "notes": "The official EBRPD page labels and links this exact coordinate query as the Stanford Avenue entrance; its directions shortcut independently resolves to the staging area.",
          "observation_id": "observation-ebrpd-linked-mission-peak-map-points",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Ohlone College entrance address link",
            "Anza–Pine walk-in entrance link",
            "Stanford Avenue entrance link",
            "Mission Peak directions link"
          ],
          "content": "The EBRPD To Reach The Park section links 43600 Mission Boulevard for the Ohlone College entrance, a coordinate pin at 37.527465089624, -121.912493393071 for the Anza–Pine walk-in entrance, and a coordinate pin at 37.5044641253631, -121.908478932501 for the Stanford Avenue entrance. Its separate directions shortcut resolves to the Stanford Avenue Staging Area. The address-map URL includes a map-view center, but that center is not asserted as an authoritative entrance coordinate.",
          "observation_id": "observation-ebrpd-linked-mission-peak-map-points",
          "observed_at": null,
          "observer": "Wayproof linked-source review",
          "retrieved_at": "2026-09-20T00:00:00-07:00",
          "source_id": "source-ebrpd-mission-peak-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/mission-peak",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-mission-peak-park-page"
        }
      ],
      "subject": {
        "entity_id": "staging-mission-peak-stanford-avenue",
        "kind": "staging_area",
        "name": "Mission Peak Stanford Avenue Staging Area"
      }
    },
    {
      "claim": {
        "claim_id": "claim-mission-peak-access-policy",
        "evidence_ids": [
          "evidence-mission-peak-access-policy"
        ],
        "predicate": "visitor_access_policy",
        "spatial_scope_ids": [
          "scope-mission-peak-ohlone-college-entrance",
          "scope-mission-peak-anza-pine-entrance",
          "scope-mission-peak-stanford-avenue-staging"
        ],
        "subject_id": "park-mission-peak-regional-preserve",
        "temporal_scope": null,
        "value": {
          "anza_pine_walk_in": {
            "access_mode": "walk-in",
            "parking_location": "Ohlone College campus",
            "separate_parking_destination": false
          },
          "mill_creek_road_access": false,
          "ohlone_college": {
            "approximate_spaces": 900,
            "overnight_parking": false,
            "parking_areas": [
              "Lot E",
              "Lot G",
              "Lot H",
              "South Parking Structure"
            ],
            "permit_required_hours": "06:00–23:00 daily, except college-observed holidays and semester breaks"
          },
          "preferred_over_stanford_for_capacity": true,
          "stanford_avenue": {
            "overnight_parking": "Only with a permit issued through an Ohlone Wilderness camping reservation",
            "residential_parking_restricted": "Saturday 00:01 through Sunday 23:59 and on national holidays",
            "spaces": 43
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-mission-peak-access-policy",
          "evidence_id": "evidence-mission-peak-access-policy",
          "notes": "The official park page directly compares parking capacity, permit requirements, overnight use, and access restrictions for the two principal approaches.",
          "observation_id": "observation-ebrpd-mission-peak-access",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "To Reach The Park",
            "Ohlone College Entrance",
            "Stanford Avenue Entrance"
          ],
          "content": "The live park page distinguishes the Ohlone College approach, its Anza–Pine walk-in entrance, and Stanford Avenue access. Visitors using Anza–Pine generally park on the Ohlone College campus and walk to that pedestrian entry point; Anza–Pine is not modeled as a separate parking destination. Ohlone College has more than 900 parking spaces in Lots E, G, H and the parking structure, requires a college parking permit from 6 a.m. to 11 p.m. except stated college holidays and semester breaks, and prohibits overnight parking. Stanford Avenue has 43 spaces and permits overnight parking only with the permit issued through an Ohlone Wilderness camping reservation. The page warns that nearby residential parking is restricted on weekends and national holidays, states there is no Mission Peak access from Mill Creek Road, and encourages Ohlone College access because Stanford Avenue is heavily used.",
          "observation_id": "observation-ebrpd-mission-peak-access",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T00:00:00-07:00",
          "source_id": "source-ebrpd-mission-peak-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/mission-peak",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-mission-peak-park-page"
        }
      ],
      "subject": {
        "entity_id": "park-mission-peak-regional-preserve",
        "kind": "park",
        "name": "Mission Peak Regional Preserve"
      }
    }
  ],
  "entity": {
    "entity_id": "staging-mission-peak-stanford-avenue",
    "kind": "staging_area",
    "name": "Mission Peak Stanford Avenue Staging Area"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/staging-mission-peak-stanford-avenue.json",
      "reason": "Capture Mission Peak access, parking, permit, and official-page-linked map-point knowledge with explicit provenance and applicability.",
      "record_id": "staging-mission-peak-stanford-avenue",
      "record_type": "entity",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [
        "evidence-google-maps-mission-peak-stanford-restroom-20260920"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-google-maps-mission-peak-stanford-restroom-20260920.json",
      "reason": "Capture the user-supplied Stanford Avenue restroom pin, dated community media, and provenance-qualified facility details.",
      "record_id": "claim-google-maps-mission-peak-stanford-restroom-20260920",
      "record_type": "claim",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [
        "evidence-ebrpd-mission-peak-map-stanford-restroom-2026-08"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-mission-peak-stanford-restroom-official-map-2026-08.json",
      "reason": "Ingest the current August 2026 official Mission Peak map with explicit revision provenance.",
      "record_id": "claim-mission-peak-stanford-restroom-official-map-2026-08",
      "record_type": "claim",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [
        "evidence-ebrpd-mission-peak-map-route-distances-2026-08"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-mission-peak-map-route-distances-2026-08.json",
      "reason": "Ingest the current August 2026 official Mission Peak map with explicit revision provenance.",
      "record_id": "claim-mission-peak-map-route-distances-2026-08",
      "record_type": "claim",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [
        "evidence-mission-peak-stanford-map-point"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-mission-peak-stanford-map-point.json",
      "reason": "Capture Mission Peak access, parking, permit, and official-page-linked map-point knowledge with explicit provenance and applicability.",
      "record_id": "claim-mission-peak-stanford-map-point",
      "record_type": "claim",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-mission-peak-access-parking",
      "evidence_refs": [
        "evidence-mission-peak-access-policy"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-mission-peak-access-policy.json",
      "reason": "Capture Mission Peak access, parking, permit, and official-page-linked map-point knowledge with explicit provenance and applicability.",
      "record_id": "claim-mission-peak-access-policy",
      "record_type": "claim",
      "summary": "Add official Mission Peak access and parking sources, Ohlone College visitor permit policy, linked access-point references, the Stanford Avenue restroom pin, and the current August 2026 official Mission Peak map with route distances and restroom corroboration."
    }
  ],
  "journey": [],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-ohlone-map-mainline-mileage-label-001"
      ],
      "object_id": "staging-mission-peak-stanford-avenue",
      "predicate": "starts_at",
      "relationship_id": "relationship-route-leg-ohlone-mainline-001-start",
      "subject_id": "route-leg-ohlone-mainline-001",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}