{ "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" } } ], "entity": { "entity_id": "restroom-mission-peak-stanford-avenue", "kind": "restroom", "name": "Stanford Avenue Staging Area Restroom" }, "gap_details": [], "history": [ { "action": "ADD", "change_set_id": "wp-20260920-mission-peak-access-parking", "evidence_refs": [], "knowledge_gap_refs": [], "path": "canonical/v0/entities/restroom-mission-peak-stanford-avenue.json", "reason": "Capture the user-supplied Stanford Avenue restroom pin, dated community media, and provenance-qualified facility details.", "record_id": "restroom-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." } ], "journey": [], "knowledge_gaps": [], "reference_evidence": [], "relationships": [], "route_geometry": null, "route_geometry_url": null, "type": "canonical_entity" }