Yerba Buena Island
E19053
Yerba Buena Island is a natural island in the middle of San Francisco Bay that connects the eastern and western spans of the San Francisco–Oakland Bay Bridge.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Yerba Buena Island canonical | 25 |
| San Francisco Bay Islands | 1 |
| Treasure Island–Yerba Buena Island neighborhood | 1 |
| Yerba Buena Island, San Francisco Bay | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T70628 — 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: Yerba Buena Island Context triple: [San Francisco Bay, hasIsland, Yerba Buena Island]
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A.
Santa Barbara Island
Santa Barbara Island is a small, remote volcanic island off the coast of Southern California known for its rugged cliffs, seabird colonies, and protected natural habitats within the Channel Islands archipelago.
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B.
San Miguel Island
San Miguel Island is the westernmost of California’s Channel Islands, known for its rugged windswept landscape, rich marine wildlife, and protected status within Channel Islands National Park.
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C.
Anacapa Island
Anacapa Island is a small, rugged volcanic island off the coast of Southern California known for its dramatic sea cliffs, rich seabird colonies, and iconic lighthouse.
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D.
Santa Rosa Island
Santa Rosa Island is one of California’s Channel Islands known for its rugged coastal landscapes, rare wildlife, and archaeological sites spanning thousands of years of human history.
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E.
Alcatraz Island
Alcatraz Island is a small rocky island in San Francisco Bay best known for its former maximum-security federal prison, which once held some of America’s most notorious criminals and is now a popular historic site and tourist attraction.
- 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: Yerba Buena Island Target entity description: Yerba Buena Island is a natural island in the middle of San Francisco Bay that connects the eastern and western spans of the San Francisco–Oakland Bay Bridge.
-
A.
Santa Barbara Island
Santa Barbara Island is a small, remote volcanic island off the coast of Southern California known for its rugged cliffs, seabird colonies, and protected natural habitats within the Channel Islands archipelago.
-
B.
San Miguel Island
San Miguel Island is the westernmost of California’s Channel Islands, known for its rugged windswept landscape, rich marine wildlife, and protected status within Channel Islands National Park.
-
C.
Anacapa Island
Anacapa Island is a small, rugged volcanic island off the coast of Southern California known for its dramatic sea cliffs, rich seabird colonies, and iconic lighthouse.
-
D.
Santa Rosa Island
Santa Rosa Island is one of California’s Channel Islands known for its rugged coastal landscapes, rare wildlife, and archaeological sites spanning thousands of years of human history.
-
E.
Alcatraz Island
Alcatraz Island is a small rocky island in San Francisco Bay best known for its former maximum-security federal prison, which once held some of America’s most notorious criminals and is now a popular historic site and tourist attraction.
- F. None of above. chosen
Statements (48)
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: Yerba Buena Island Description of subject: Yerba Buena Island is a natural island in the middle of San Francisco Bay that connects the eastern and western spans of the San Francisco–Oakland Bay Bridge.
Referenced by (28)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yerba Buena Island
linked to: Yerba Buena Island
U.S. Coast Guard Sector San Francisco
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headquartersLocation
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Yerba Buena Island, San Francisco Bay
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linked to: Yerba Buena Island