Fort Washington Marina
E180281
Fort Washington Marina is a public boating and recreational facility located along the Potomac River within the National Capital Parks-East area near Fort Washington, Maryland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Washington Marina canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1568124 — 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 Washington Marina Context triple: [National Capital Parks-East, hasPart, Fort Washington Marina]
-
A.
Columbia Point Marina Park
Columbia Point Marina Park is a waterfront recreational area and boat marina located along the Columbia River in Richland, Washington.
-
B.
HarborWalk Marina
HarborWalk Marina is a popular waterfront marina and entertainment hub in Destin, Florida, known for its boating, fishing charters, dining, and shops along the harbor.
-
C.
Belle Haven Marina
Belle Haven Marina is a public boating facility and recreational area on the Potomac River near Alexandria, Virginia, offering boat rentals, sailing, and river access.
-
D.
Union Bay
Union Bay is a shallow, marshy inlet on the western shore of Lake Washington in Seattle, known for its wetlands and wildlife habitat.
-
E.
79th Street Boat Basin
The 79th Street Boat Basin is a marina and waterfront recreation area on the Hudson River in Manhattan, known for its boat slips, promenade views, and adjacent café.
- 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 Washington Marina Target entity description: Fort Washington Marina is a public boating and recreational facility located along the Potomac River within the National Capital Parks-East area near Fort Washington, Maryland.
-
A.
Columbia Point Marina Park
Columbia Point Marina Park is a waterfront recreational area and boat marina located along the Columbia River in Richland, Washington.
-
B.
HarborWalk Marina
HarborWalk Marina is a popular waterfront marina and entertainment hub in Destin, Florida, known for its boating, fishing charters, dining, and shops along the harbor.
-
C.
Belle Haven Marina
Belle Haven Marina is a public boating facility and recreational area on the Potomac River near Alexandria, Virginia, offering boat rentals, sailing, and river access.
-
D.
Union Bay
Union Bay is a shallow, marshy inlet on the western shore of Lake Washington in Seattle, known for its wetlands and wildlife habitat.
-
E.
79th Street Boat Basin
The 79th Street Boat Basin is a marina and waterfront recreation area on the Hudson River in Manhattan, known for its boat slips, promenade views, and adjacent café.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
marina
ⓘ
public recreational facility ⓘ |
| adjacentTo | Fort Washington Park ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county |
Prince George’s County, Maryland
ⓘ
surface form:
Prince George's County, Maryland
|
| hasAccess |
Potomac River
ⓘ
surface form:
Potomac River navigation channel
|
| hasActivity |
boating
ⓘ
canoeing ⓘ kayaking ⓘ picnicking ⓘ |
| hasAmenity |
picnic areas
ⓘ
walking paths ⓘ |
| hasFeature |
boat ramps
ⓘ
boat slips ⓘ fuel dock ⓘ parking lot ⓘ restrooms ⓘ |
| hasUse |
fishing access
ⓘ
recreational boating ⓘ sightseeing ⓘ |
| hasView |
Fort Washington shoreline
ⓘ
Potomac River ⓘ |
| locatedIn | Fort Washington, Maryland ⓘ |
| locatedOnWaterbody | Potomac River ⓘ |
| near |
Fort Washington, Maryland residential areas
ⓘ
National Harbor, Maryland ⓘ |
| openTo | public ⓘ |
| operatedBy | National Park Service ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
National Capital Parks–East
ⓘ
surface form:
National Capital Parks-East
|
| region | National Capital Region ⓘ |
| state | Maryland ⓘ |
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 Washington Marina Description of subject: Fort Washington Marina is a public boating and recreational facility located along the Potomac River within the National Capital Parks-East area near Fort Washington, Maryland.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
National Capital Parks-East