San Francisco Bay Islands
E564414
The San Francisco Bay Islands are a group of natural and artificial islands scattered throughout San Francisco Bay, including notable sites such as Alcatraz, Angel Island, and Treasure Island.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Francisco Bay Islands canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5815487 — 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 Islands Context triple: [Goat Island, partOf, San Francisco Bay Islands]
-
A.
Farallon Islands
The Farallon Islands are a remote, rocky archipelago off the coast of San Francisco, California, known for their rich marine wildlife, large seabird colonies, and significant role in oceanographic and geological research.
-
B.
Channel Islands of California
The Channel Islands of California are an eight-island archipelago off the Southern California coast, renowned for their unique Mediterranean ecosystems, high levels of endemism, and protected marine and terrestrial habitats.
-
C.
Santa Clara Island
Santa Clara Island is a small Ecuadorian island in the Pacific Ocean known for its rich marine biodiversity and status as a protected wildlife refuge.
-
D.
Santa Clara Island
Santa Clara Island is a small, uninhabited island in Chile’s Pacific Juan Fernández archipelago, known for its rugged terrain and unique, protected ecosystems.
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E.
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.
- 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 Islands Target entity description: The San Francisco Bay Islands are a group of natural and artificial islands scattered throughout San Francisco Bay, including notable sites such as Alcatraz, Angel Island, and Treasure Island.
-
A.
Farallon Islands
The Farallon Islands are a remote, rocky archipelago off the coast of San Francisco, California, known for their rich marine wildlife, large seabird colonies, and significant role in oceanographic and geological research.
-
B.
Channel Islands of California
The Channel Islands of California are an eight-island archipelago off the Southern California coast, renowned for their unique Mediterranean ecosystems, high levels of endemism, and protected marine and terrestrial habitats.
-
C.
Santa Clara Island
Santa Clara Island is a small, uninhabited island in Chile’s Pacific Juan Fernández archipelago, known for its rugged terrain and unique, protected ecosystems.
-
D.
Santa Clara Island
Santa Clara Island is a small Ecuadorian island in the Pacific Ocean known for its rich marine biodiversity and status as a protected wildlife refuge.
-
E.
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.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
archipelago
ⓘ
geographical region ⓘ |
| adjacentTo |
East Bay
NERFINISHED
ⓘ
Marin Peninsula NERFINISHED ⓘ San Francisco Peninsula NERFINISHED ⓘ |
| contains |
artificial islands
ⓘ
natural islands ⓘ |
| hasMajorIsland |
Alameda Island
NERFINISHED
ⓘ
Alcatraz Island NERFINISHED ⓘ Angel Island NERFINISHED ⓘ Bay Farm Island NERFINISHED ⓘ Belvedere Island NERFINISHED ⓘ Brooks Island NERFINISHED ⓘ Marin Islands NERFINISHED ⓘ Red Rock Island NERFINISHED ⓘ Treasure Island NERFINISHED ⓘ Yerba Buena Island NERFINISHED ⓘ |
| hasPart |
Alameda Island
NERFINISHED
ⓘ
Alcatraz Island NERFINISHED ⓘ Angel Island NERFINISHED ⓘ Artificial islands of San Francisco Bay ⓘ Bair Island NERFINISHED ⓘ Bay Farm Island NERFINISHED ⓘ Belvedere Island NERFINISHED ⓘ Brooks Island NERFINISHED ⓘ Cooley Landing islands NERFINISHED ⓘ Coyote Hills islands NERFINISHED ⓘ Drawbridge Island NERFINISHED ⓘ Foster City islands NERFINISHED ⓘ Greco Island NERFINISHED ⓘ Harbor Bay Isle NERFINISHED ⓘ Marin Islands NERFINISHED ⓘ Natural islands of San Francisco Bay ⓘ Raccoon Strait Islands NERFINISHED ⓘ Red Rock Island NERFINISHED ⓘ Treasure Island NERFINISHED ⓘ Yerba Buena Island NERFINISHED ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco Bay NERFINISHED ⓘ San Francisco Bay Area ⓘ United States of America ⓘ
surface form:
United States
|
| notableFor |
Golden Gate National Recreation Area sites
ⓘ
World War II naval facilities ⓘ former federal prison on Alcatraz Island ⓘ historic military installations ⓘ state park on Angel Island ⓘ |
| partOf | Pacific Coast islands of the United States ⓘ |
| usedFor |
military purposes (historically)
ⓘ
recreation ⓘ residential development ⓘ transportation infrastructure ⓘ wildlife habitat ⓘ |
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 Islands Description of subject: The San Francisco Bay Islands are a group of natural and artificial islands scattered throughout San Francisco Bay, including notable sites such as Alcatraz, Angel Island, and Treasure Island.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.