San Francisco Bay Trail
E437021
The San Francisco Bay Trail is a planned 500-mile network of multi-use paths that encircle the San Francisco Bay, connecting shoreline parks, cities, and natural habitats for walkers, cyclists, and other non-motorized users.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T4414887 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Francisco Bay Trail Context triple: [Marina Bay, Richmond, California, traversedBy, San Francisco Bay Trail]
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A.
Contra Costa Canal Trail
The Contra Costa Canal Trail is a multi-use recreational path in Contra Costa County, California, popular with cyclists, runners, and walkers as it follows the route of the Contra Costa Canal through suburban communities and open spaces.
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B.
Cabrillo Bike Path
Cabrillo Bike Path is a popular coastal multi-use trail in Santa Barbara, California, offering scenic oceanfront views and access to nearby beaches and parks.
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C.
Santa Cruz Trail
Santa Cruz Trail is a popular backcountry hiking route in California known for its scenic canyon views, chaparral landscapes, and access to remote areas of the Santa Ynez Mountains.
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D.
Stevens Creek Trail
Stevens Creek Trail is a popular multi-use recreational path in Mountain View, California, that follows Stevens Creek and connects parks, neighborhoods, and nearby cities for walking, running, and cycling.
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E.
Shining Sea Bikeway
Shining Sea Bikeway is a scenic multi-use path on Cape Cod known for its coastal views, salt marshes, and access to beaches and historic sites.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Francisco Bay Trail Target entity description: The San Francisco Bay Trail is a planned 500-mile network of multi-use paths that encircle the San Francisco Bay, connecting shoreline parks, cities, and natural habitats for walkers, cyclists, and other non-motorized users.
-
A.
Contra Costa Canal Trail
The Contra Costa Canal Trail is a multi-use recreational path in Contra Costa County, California, popular with cyclists, runners, and walkers as it follows the route of the Contra Costa Canal through suburban communities and open spaces.
-
B.
Cabrillo Bike Path
Cabrillo Bike Path is a popular coastal multi-use trail in Santa Barbara, California, offering scenic oceanfront views and access to nearby beaches and parks.
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C.
Santa Cruz Trail
Santa Cruz Trail is a popular backcountry hiking route in California known for its scenic canyon views, chaparral landscapes, and access to remote areas of the Santa Ynez Mountains.
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D.
Stevens Creek Trail
Stevens Creek Trail is a popular multi-use recreational path in Mountain View, California, that follows Stevens Creek and connects parks, neighborhoods, and nearby cities for walking, running, and cycling.
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E.
Shining Sea Bikeway
Shining Sea Bikeway is a scenic multi-use path on Cape Cod known for its coastal views, salt marshes, and access to beaches and historic sites.
- F. None of above. chosen
Statements (70)
| Predicate | Object |
|---|---|
| instanceOf |
multi-use path network
ⓘ
recreational trail ⓘ transportation corridor ⓘ |
| connects |
cities
ⓘ
commuter hubs ⓘ marinas ⓘ natural habitats ⓘ shoreline parks ⓘ wildlife refuges ⓘ |
| coordinatedBy | Bay Trail Project ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| developedBy | Association of Bay Area Governments ⓘ |
| encircles | San Francisco Bay ⓘ |
| feature |
access points
ⓘ
interpretive displays ⓘ trailheads ⓘ wayfinding signs ⓘ |
| follows |
San Francisco Bay shoreline
ⓘ
linked to:
San Francisco Bay waterfront
|
| goal | continuous public access around San Francisco Bay shoreline ⓘ |
| hasViewOf |
San Francisco Bay
ⓘ
marshes ⓘ urban waterfronts ⓘ wetlands ⓘ |
| inception | late 1980s planning period ⓘ |
| lengthPlanned |
500 miles
ⓘ
approximately 800 kilometers ⓘ |
| locatedIn | San Francisco Bay Area ⓘ |
| passesThrough |
Alameda
ⓘ
linked to:
Alameda, California
Alameda County ⓘ Berkeley ⓘ Contra Costa County ⓘ Fremont ⓘ Marin County ⓘ Napa County ⓘ Oakland ⓘ Palo Alto ⓘ
linked to:
Palo Alto, California
Redwood City ⓘ
linked to:
Redwood City, California
Richmond ⓘ San Francisco ⓘ San Francisco County ⓘ San Jose ⓘ San Mateo County ⓘ
linked to:
San Mateo County, California
Santa Clara County ⓘ Solano County ⓘ Sonoma County ⓘ
linked to:
Sonoma County, California
Vallejo ⓘ |
| primaryUsers |
cyclists
ⓘ
hikers ⓘ other non-motorized users ⓘ runners ⓘ walkers ⓘ |
| prohibits | motor vehicles ⓘ |
| purpose |
access to shoreline
ⓘ
environmental education ⓘ non-motorized transportation ⓘ recreation ⓘ |
| region | Northern California ⓘ |
| routeType | loop ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| supportsActivity |
bicycling
ⓘ
birdwatching ⓘ commuting ⓘ running ⓘ walking ⓘ |
| terrain |
boardwalk sections
ⓘ
gravel sections ⓘ paved sections ⓘ |
| uses |
bike lanes
ⓘ
multi-use paths ⓘ separated trails ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: San Francisco Bay Trail Description of subject: The San Francisco Bay Trail is a planned 500-mile network of multi-use paths that encircle the San Francisco Bay, connecting shoreline parks, cities, and natural habitats for walkers, cyclists, and other non-motorized users.
Referenced by (21)
Full triples — surface form annotated when it differs from this entity's canonical label.
San Francisco Bay shoreline at Berkeley
→
hasPart
→
Eastshore State Park bicycle and pedestrian paths (Berkeley section)
ⓘ
linked to: San Francisco Bay Trail
linked to: San Francisco Bay Trail
subject linked to:
Lands End area
linked to: San Francisco Bay Trail
linked to: San Francisco Bay Trail
subject linked to:
Marina Park
subject linked to:
Marina Park
subject linked to:
Marina Park
linked to: San Francisco Bay Trail
linked to: San Francisco Bay Trail