Fort Mahan Park
E186085
Fort Mahan Park is a historic Civil War-era fort site in Washington, D.C., now preserved as a public park within the National Capital Parks-East system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Mahan Park canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1568106 — 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 Mahan Park Context triple: [National Capital Parks-East, hasPart, Fort Mahan Park]
-
A.
Fort Boreman Park
Fort Boreman Park is a historic hilltop park in Parkersburg, West Virginia, featuring Civil War-era earthworks, scenic overlooks of the Ohio River, and recreational trails.
-
B.
Claude Moore Park
Claude Moore Park is a large public park and nature preserve in Sterling, Virginia, featuring trails, sports facilities, and environmental education programs.
-
C.
Alfred B. Maclay Gardens State Park
Alfred B. Maclay Gardens State Park is a historic ornamental garden and recreational state park in Tallahassee, Florida, known for its landscaped grounds, camellias, azaleas, and scenic lakefront.
-
D.
Olustee Battlefield Historic State Park
Olustee Battlefield Historic State Park is a Florida state park preserving the site of the largest Civil War battle fought in the state, featuring a museum, monuments, and interpretive trails.
-
E.
Veterans Park
Veterans Park is a public recreational park in Hoover, Alabama, featuring open green spaces, sports facilities, and community amenities for residents and visitors.
- 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 Mahan Park Target entity description: Fort Mahan Park is a historic Civil War-era fort site in Washington, D.C., now preserved as a public park within the National Capital Parks-East system.
-
A.
Fort Boreman Park
Fort Boreman Park is a historic hilltop park in Parkersburg, West Virginia, featuring Civil War-era earthworks, scenic overlooks of the Ohio River, and recreational trails.
-
B.
Claude Moore Park
Claude Moore Park is a large public park and nature preserve in Sterling, Virginia, featuring trails, sports facilities, and environmental education programs.
-
C.
Alfred B. Maclay Gardens State Park
Alfred B. Maclay Gardens State Park is a historic ornamental garden and recreational state park in Tallahassee, Florida, known for its landscaped grounds, camellias, azaleas, and scenic lakefront.
-
D.
Olustee Battlefield Historic State Park
Olustee Battlefield Historic State Park is a Florida state park preserving the site of the largest Civil War battle fought in the state, featuring a museum, monuments, and interpretive trails.
-
E.
Veterans Park
Veterans Park is a public recreational park in Hoover, Alabama, featuring open green spaces, sports facilities, and community amenities for residents and visitors.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Civil War fort site
ⓘ
historic site ⓘ public park ⓘ |
| conflict | American Civil War ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| era | Civil War era ⓘ |
| hasAccess |
pedestrian access
ⓘ
street access ⓘ |
| hasCategory |
American Civil War forts
ⓘ
Parks in Washington, D.C. ⓘ Protected areas of Washington, D.C. ⓘ |
| hasFeature |
earthworks
ⓘ
interpretive signage ⓘ open green space ⓘ walking paths ⓘ wooded areas ⓘ |
| hasHeritage | American Civil War ⓘ |
| hasManagement |
National Capital Region (National Park Service)
ⓘ
surface form:
National Park Service, National Capital Region
|
| hasOriginalFunction | Union Army fortification ⓘ |
| hasRelevance |
military history of Washington, D.C.
ⓘ
urban green space in Washington, D.C. ⓘ |
| hasSiteType | earthen fort ⓘ |
| hasUse |
education
ⓘ
historical interpretation ⓘ recreation ⓘ |
| hasView | surrounding neighborhoods of Northeast D.C. ⓘ |
| locatedIn |
United States of America
ⓘ
surface form:
United States
Washington, D.C. ⓘ |
| locatedInAdministrativeTerritory | Northeast Washington, D.C. ⓘ |
| locatedInNeighborhood | Deanwood ⓘ |
| maintainedBy | National Park Service ⓘ |
| namedAfter |
Dennis Hart Mahan
ⓘ
Fort Mahan ⓘ |
| openToPublic | yes ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
Civil War Defenses of Washington
ⓘ
Fort Totten ⓘ
surface form:
Defenses of Washington
National Capital Parks ⓘ
surface form:
National Capital Parks system
National Capital Parks–East ⓘ
surface form:
National Capital Parks-East
|
| preserves | remains of Fort Mahan ⓘ |
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 Mahan Park Description of subject: Fort Mahan Park is a historic Civil War-era fort site in Washington, D.C., now preserved as a public park within the National Capital Parks-East system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
National Capital Parks-East