Angel Island (across Raccoon Strait)
E457761
Angel Island (across Raccoon Strait) is a historic island in San Francisco Bay known for its former U.S. immigration station and panoramic views of the surrounding bay and city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Angel Island (across Raccoon Strait) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4641113 — 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 (across Raccoon Strait) Context triple: [Belvedere, California, adjacentTo, Angel Island (across Raccoon Strait)]
-
A.
Half Moon Island
Half Moon Island is a small, crescent-shaped Antarctic island in the South Shetland Islands, known for its penguin colonies and use as a site for scientific research stations.
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B.
Thompson Island
Thompson Island is a largely undeveloped island in Boston Harbor known for its natural landscapes, outdoor education programs, and role as a recreational and conservation area near the city.
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C.
Gunnison Island
Gunnison Island is a remote, largely uninhabited island and important bird sanctuary located in Utah’s Great Salt Lake.
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D.
Fremont Island
Fremont Island is a largely uninhabited, privately owned island in Utah’s Great Salt Lake, known for its rugged terrain, historical ranching use, and limited public access.
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E.
Station Island
Station Island is a poetry collection by Seamus Heaney that reflects on Irish history, spirituality, and personal conscience through a series of meditative and narrative poems.
- 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 (across Raccoon Strait) Target entity description: Angel Island (across Raccoon Strait) is a historic island in San Francisco Bay known for its former U.S. immigration station and panoramic views of the surrounding bay and city.
-
A.
Half Moon Island
Half Moon Island is a small, crescent-shaped Antarctic island in the South Shetland Islands, known for its penguin colonies and use as a site for scientific research stations.
-
B.
Thompson Island
Thompson Island is a largely undeveloped island in Boston Harbor known for its natural landscapes, outdoor education programs, and role as a recreational and conservation area near the city.
-
C.
Gunnison Island
Gunnison Island is a remote, largely uninhabited island and important bird sanctuary located in Utah’s Great Salt Lake.
-
D.
Fremont Island
Fremont Island is a largely uninhabited, privately owned island in Utah’s Great Salt Lake, known for its rugged terrain, historical ranching use, and limited public access.
-
E.
Station Island
Station Island is a poetry collection by Seamus Heaney that reflects on Irish history, spirituality, and personal conscience through a series of meditative and narrative poems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
island ⓘ state park ⓘ |
| accessibleBy | ferry ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| ferryServiceFrom |
Oakland (seasonal or limited)
NERFINISHED
ⓘ
San Francisco NERFINISHED ⓘ Tiburon NERFINISHED ⓘ |
| hasFacility |
campgrounds
ⓘ
historic buildings ⓘ picnic sites ⓘ visitor center ⓘ |
| hasHeritageDesignation | National Historic Landmark (Angel Island Immigration Station) NERFINISHED ⓘ |
| hasHighestPoint | Mount Caroline Livermore NERFINISHED ⓘ |
| hasHistoricUse |
U.S. immigration station
NERFINISHED
ⓘ
military installation ⓘ quarantine station ⓘ |
| hasLandmark | Angel Island Immigration Station NERFINISHED ⓘ |
| hasNickname | Ellis Island of the West Coast NERFINISHED ⓘ |
| hasProtectedAreaStatus | Angel Island State Park NERFINISHED ⓘ |
| hasTrail |
Perimeter Road
NERFINISHED
ⓘ
Sunrise Trail NERFINISHED ⓘ Sunset Trail NERFINISHED ⓘ |
| hasViewOf |
Alcatraz Island
NERFINISHED
ⓘ
Bay Bridge NERFINISHED ⓘ Golden Gate Bridge NERFINISHED ⓘ Marin Headlands NERFINISHED ⓘ Mount Tamalpais NERFINISHED ⓘ San Francisco NERFINISHED ⓘ San Francisco Bay NERFINISHED ⓘ |
| knownFor |
biking routes
ⓘ
hiking trails ⓘ historic immigration facilities ⓘ panoramic views ⓘ picnic areas ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Marin County, California NERFINISHED ⓘ San Francisco Bay NERFINISHED ⓘ |
| managedBy | California Department of Parks and Recreation ⓘ |
| partOf |
Pacific immigration history
ⓘ
San Francisco Bay Area ⓘ |
| separatedBy | Raccoon Strait NERFINISHED ⓘ |
| separatedFrom | Tiburon Peninsula NERFINISHED ⓘ |
| usedAs |
detention center for immigrants
ⓘ
military outpost ⓘ processing center for Asian immigrants ⓘ |
| usedDuring |
World War I
NERFINISHED
ⓘ
World War II ⓘ |
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 (across Raccoon Strait) Description of subject: Angel Island (across Raccoon Strait) is a historic island in San Francisco Bay known for its former U.S. immigration station and panoramic views of the surrounding bay and city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Belvedere, California