San Francisco Bay
E1412
San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
All labels observed (15)
How this entity was disambiguated
This entity first appeared as the object of triple T11863 — 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 Context triple: [San Francisco, borders, San Francisco Bay]
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A.
South Lake Tahoe
South Lake Tahoe is a resort city in California known for its access to Lake Tahoe’s beaches, ski resorts, and outdoor recreation.
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B.
Lake Tahoe
Lake Tahoe is a large, deep, and famously clear freshwater lake in the Sierra Nevada mountains, straddling the border of California and Nevada and serving as a major destination for outdoor recreation and tourism.
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C.
East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
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D.
Massachusetts Bay
Massachusetts Bay is a large inlet of the Atlantic Ocean on the eastern coast of Massachusetts, historically significant as the site of early English colonial settlement in New England.
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E.
San Francisco
San Francisco is a major coastal city in Northern California known for its hilly landscape, iconic Golden Gate Bridge, and role as a historic center of technology and counterculture.
- 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 Target entity description: San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
-
A.
South Lake Tahoe
South Lake Tahoe is a resort city in California known for its access to Lake Tahoe’s beaches, ski resorts, and outdoor recreation.
-
B.
Lake Tahoe
Lake Tahoe is a large, deep, and famously clear freshwater lake in the Sierra Nevada mountains, straddling the border of California and Nevada and serving as a major destination for outdoor recreation and tourism.
-
C.
East River
The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
-
D.
Massachusetts Bay
Massachusetts Bay is a large inlet of the Atlantic Ocean on the eastern coast of Massachusetts, historically significant as the site of early English colonial settlement in New England.
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E.
San Francisco
San Francisco is a major coastal city in Northern California known for its hilly landscape, iconic Golden Gate Bridge, and role as a historic center of technology and counterculture.
- F. None of above. chosen
Statements (51)
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 Description of subject: San Francisco Bay is a large, shallow estuarine inlet on the coast of Northern California, known for its iconic bridges, maritime activity, and role as the geographic center of the San Francisco Bay Area.
Referenced by (449)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Francisco Bay hydrologic system
subject surface form:
Union City, California
this entity surface form:
San Francisco Bay coastal plain
subject surface form:
Union City, California
this entity surface form:
San Francisco Bay watershed
subject surface form:
Richmond, California
this entity surface form:
San Francisco Bay estuary system
subject surface form:
Green Street (San Francisco)