Fort Marcy
E152009
Fort Marcy is a preserved Civil War-era earthwork fort in Virginia that now serves as a historic site and recreational area within the George Washington Memorial Parkway.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Marcy canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1326692 — 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 Marcy Context triple: [George Washington Memorial Parkway, contains, Fort Marcy]
-
A.
Fort Jay
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.
-
B.
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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C.
Fort Hamilton
Fort Hamilton is a 19th-century British coastal artillery fort in Hamilton, Bermuda, built to defend the harbor and now preserved as a historic site and tourist attraction.
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D.
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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E.
Randall's Island Park
Randall's Island Park is a large recreational area in New York City known for its extensive athletic fields, waterfront paths, and event spaces located between Manhattan, Queens, and the Bronx.
- 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 Marcy Target entity description: Fort Marcy is a preserved Civil War-era earthwork fort in Virginia that now serves as a historic site and recreational area within the George Washington Memorial Parkway.
-
A.
Fort Jay
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.
-
B.
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.
-
C.
Fort Hamilton
Fort Hamilton is a 19th-century British coastal artillery fort in Hamilton, Bermuda, built to defend the harbor and now preserved as a historic site and tourist attraction.
-
D.
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.
-
E.
Randall's Island Park
Randall's Island Park is a large recreational area in New York City known for its extensive athletic fields, waterfront paths, and event spaces located between Manhattan, Queens, and the Bronx.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Civil War-era earthwork fort
ⓘ
historic site ⓘ recreational area ⓘ |
| administeredBy |
George Washington Memorial Parkway
ⓘ
surface form:
George Washington Memorial Parkway unit of the National Park Service
|
| associatedWith | Union Army ⓘ |
| associatedWithEvent |
Civil War Defenses of Washington
ⓘ
surface form:
American Civil War defenses of Washington, D.C.
|
| builtDuring | American Civil War ⓘ |
| category |
American Civil War fort
ⓘ
park in Fairfax County, Virginia ⓘ protected area of Fairfax County, Virginia ⓘ |
| constructionType | earthwork fortification ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| era | 19th century ⓘ |
| governingBody | National Park Service ⓘ |
| hasAccessFrom | George Washington Memorial Parkway ⓘ |
| hasAmenity |
informational kiosks
ⓘ
restrooms ⓘ |
| hasFeature |
artillery emplacements
ⓘ
earthen ramparts ⓘ hiking trails ⓘ interpretive signs ⓘ parking area ⓘ picnic area ⓘ rifle pits ⓘ |
| hasTrailConnection |
Potomac Heritage National Scenic Trail corridor
ⓘ
surface form:
Potomac Heritage National Scenic Trail
|
| hasViewOf |
Potomac Gorge
ⓘ
surface form:
Potomac River gorge
|
| historicalPeriod | American Civil War ⓘ |
| locatedIn |
Fairfax County, Virginia
ⓘ
United States of America ⓘ
surface form:
United States
|
| maintainedBy | National Park Service ⓘ |
| namedAfter | Randolph B. Marcy ⓘ |
| nearestCity |
McLean
ⓘ
surface form:
McLean, Virginia
|
| openToPublic | yes ⓘ |
| overlooks | Potomac River ⓘ |
| partOf |
Civil War Defenses of Washington
ⓘ
George Washington Memorial Parkway ⓘ |
| preservationStatus | preserved earthwork fort ⓘ |
| purpose | defense of Washington, D.C. ⓘ |
| region | Northern Virginia ⓘ |
| significance | part of the defensive ring protecting the Union capital ⓘ |
| state | Virginia ⓘ |
| usedFor |
historical interpretation
ⓘ
jogging ⓘ recreation ⓘ walking ⓘ |
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 Marcy Description of subject: Fort Marcy is a preserved Civil War-era earthwork fort in Virginia that now serves as a historic site and recreational area within the George Washington Memorial Parkway.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
George Washington Memorial Parkway