Fort Jay
E107850
Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T905957 — 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: Fort Jay Context triple: [Governors Island, hasPart, Fort Jay]
-
A.
Fort Hamilton
Fort Hamilton is a historic U.S. Army installation in Brooklyn, New York, guarding the entrance to New York Harbor at the Verrazzano-Narrows Bridge.
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B.
Fort Wadsworth
Fort Wadsworth is a historic former military installation and coastal defense fortification located at the Narrows in New York Harbor, now part of the Gateway National Recreation Area.
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C.
Schofield Barracks
Schofield Barracks is a major U.S. Army installation in central Oahu, Hawaii, serving as a key training and operational base for Pacific forces.
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D.
Fort Willem Hendrick
Fort Willem Hendrick was a 17th-century Dutch colonial fortification in what is now Lower Manhattan, serving as a key military and administrative center of New Netherland.
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E.
Fort Orange
Fort Orange was a 17th-century Dutch fur-trading post and military fortification located near present-day Albany, New York, that served as a key outpost of the colony of New Netherland.
- 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: Fort Jay Target entity description: Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
-
A.
Fort Hamilton
Fort Hamilton is a historic U.S. Army installation in Brooklyn, New York, guarding the entrance to New York Harbor at the Verrazzano-Narrows Bridge.
-
B.
Fort Wadsworth
Fort Wadsworth is a historic former military installation and coastal defense fortification located at the Narrows in New York Harbor, now part of the Gateway National Recreation Area.
-
C.
Schofield Barracks
Schofield Barracks is a major U.S. Army installation in central Oahu, Hawaii, serving as a key training and operational base for Pacific forces.
-
D.
Fort Willem Hendrick
Fort Willem Hendrick was a 17th-century Dutch colonial fortification in what is now Lower Manhattan, serving as a key military and administrative center of New Netherland.
-
E.
Fort Orange
Fort Orange was a 17th-century Dutch fur-trading post and military fortification located near present-day Albany, New York, that served as a key outpost of the colony of New Netherland.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States Army fort
ⓘ
historic coastal fortification ⓘ star fort ⓘ |
| access | by ferry to Governors Island ⓘ |
| constructionStart | late 18th century ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentUse |
historic site
ⓘ
public park area ⓘ |
| feature |
brick barracks
ⓘ
dry moat ⓘ earthen ramparts ⓘ parade ground ⓘ ravelin ⓘ sally port ⓘ |
| garrisonedBy |
United States Army
ⓘ
United States Coast Guard ⓘ |
| hasAlternateName | Fort Columbus ⓘ |
| hasShape | star-shaped design ⓘ |
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| inUseDuring |
American Civil War
ⓘ
Cold War ⓘ War of 1812 ⓘ World War I ⓘ World War II ⓘ |
| locatedIn |
New York City
ⓘ
New York Harbor ⓘ
linked to:
New York Harbor estuarine system
New York State ⓘ
linked to:
New York
|
| location | Governors Island ⓘ |
| maintainedBy | National Park Service ⓘ |
| material | masonry ⓘ |
| militaryUseEnd | 1960s ⓘ |
| namedAfter | John Jay ⓘ |
| nearby | Castle Williams ⓘ |
| openToPublic | yes ⓘ |
| overlooks |
Lower Manhattan
ⓘ
Upper New York Bay ⓘ |
| ownership |
federal government of the United States
ⓘ
linked to:
United States government
|
| partOf |
Governors Island Historic District
ⓘ
Governors Island National Monument ⓘ
linked to:
Governors Island
National Park System ⓘ
linked to:
United States National Park System
|
| rebuilt | early 19th century ⓘ |
| renamed | Fort Jay in the 20th century ⓘ |
| significance | example of early American coastal fortification ⓘ |
| usedFor |
coastal defense
ⓘ
harbor defense ⓘ headquarters functions ⓘ military garrison ⓘ |
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: Fort Jay Description of subject: Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Fort Jay
linked to: Fort Jay