Angel Island, California
E701566
Angel Island, California is a historic island in San Francisco Bay known for its former military installations and its role as a major U.S. immigration station, often called the “Ellis Island of the West.”
All labels observed (1)
| Label | Occurrences |
|---|---|
| Angel Island, California canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7876199 — 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: Angel Island, California Context triple: [Camp Reynolds, category, Angel Island, California]
-
A.
St. Helena, California
St. Helena, California is a small, upscale city in Napa Valley known for its wineries, vineyards, and role as a center of California’s wine industry.
-
B.
Bethel Island, California
Bethel Island, California is a small unincorporated community and island in the Sacramento–San Joaquin River Delta known for its waterfront recreation and marinas.
-
C.
La Palma, California
La Palma, California is a small suburban city in northern Orange County known for its residential neighborhoods, parks, and high-ranking public schools.
-
D.
Bay Point, California
Bay Point, California is an unincorporated suburban community in the San Francisco Bay Area known for its residential neighborhoods and proximity to the Sacramento–San Joaquin River Delta.
-
E.
Pacifica, California
Pacifica, California is a coastal city in the San Francisco Bay Area known for its scenic beaches, rugged bluffs, and popular surfing spots.
- 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: Angel Island, California Target entity description: Angel Island, California is a historic island in San Francisco Bay known for its former military installations and its role as a major U.S. immigration station, often called the “Ellis Island of the West.”
-
A.
St. Helena, California
St. Helena, California is a small, upscale city in Napa Valley known for its wineries, vineyards, and role as a center of California’s wine industry.
-
B.
Bethel Island, California
Bethel Island, California is a small unincorporated community and island in the Sacramento–San Joaquin River Delta known for its waterfront recreation and marinas.
-
C.
La Palma, California
La Palma, California is a small suburban city in northern Orange County known for its residential neighborhoods, parks, and high-ranking public schools.
-
D.
Bay Point, California
Bay Point, California is an unincorporated suburban community in the San Francisco Bay Area known for its residential neighborhoods and proximity to the Sacramento–San Joaquin River Delta.
-
E.
Pacifica, California
Pacifica, California is a coastal city in the San Francisco Bay Area known for its scenic beaches, rugged bluffs, and popular surfing spots.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
island
ⓘ
state park ⓘ |
| accessibleBy | ferry ⓘ |
| administeredBy | California Department of Parks and Recreation ⓘ |
| area |
approximately 1.2 square miles
ⓘ
approximately 740 acres ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designation | Angel Island State Park ⓘ |
| elevation | approximately 788 feet ⓘ |
| hasActivity |
biking
ⓘ
hiking ⓘ picnicking ⓘ |
| hasPart |
Angel Island Immigration Station
ⓘ
linked to:
Angel Island Visitor Center
Camp Reynolds ⓘ Fort McDowell ⓘ Mount Caroline Livermore ⓘ Point Blunt ⓘ Point Knox ⓘ |
| hasTrail |
North Ridge Trail
ⓘ
Perimeter Road ⓘ |
| hasViewOf |
Alcatraz Island
ⓘ
Golden Gate Bridge ⓘ Mount Tamalpais ⓘ
linked to:
Mount Tamalpais summit
San Francisco skyline ⓘ |
| highestPoint | Mount Caroline Livermore ⓘ |
| historicalPeriod |
19th century
ⓘ
20th century ⓘ |
| immigrationStationInOperationFrom | 1910 ⓘ |
| immigrationStationInOperationUntil | 1940 ⓘ |
| knownAs |
Ellis Island of the West
ⓘ
linked to:
Angel Island
|
| locatedIn |
California
ⓘ
linked to:
California, United States
Marin County, California ⓘ
linked to:
Marin County
San Francisco Bay ⓘ |
| nearbyCity |
San Francisco, California
ⓘ
Tiburon, California ⓘ
linked to:
Tiburon, California, United States
|
| notableFor |
detention of Chinese immigrants under the Chinese Exclusion laws
ⓘ
poetry carved into barracks walls by detainees ⓘ |
| openedAsStatePark | 1958 ⓘ |
| partOf | San Francisco Bay Area ⓘ |
| servedAs |
U.S. Army post
ⓘ
U.S. Immigration Station ⓘ
linked to:
Immigration Depot
coastal defense site ⓘ processing center for Asian immigrants ⓘ |
| usedFor |
immigration processing
ⓘ
military defense ⓘ quarantine station ⓘ recreation ⓘ |
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: Angel Island, California Description of subject: Angel Island, California is a historic island in San Francisco Bay known for its former military installations and its role as a major U.S. immigration station, often called the “Ellis Island of the West.”
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.