Fort Mason
E177982
Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Fort Mason canonical | 4 |
| Fort Mason Center for Arts & Culture | 3 |
| Lower Fort Mason | 2 |
| Upper Fort Mason | 2 |
| Fort Mason, California | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1559811 — 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 Mason Context triple: [Golden Gate National Recreation Area, hasPart, Fort Mason]
-
A.
Temescal Gateway Park
Temescal Gateway Park is a popular coastal canyon park in Los Angeles known for its hiking trails, scenic ocean and mountain views, and access to the Santa Monica Mountains.
-
B.
Frisco Square
Frisco Square is a mixed-use urban center in Frisco, Texas, featuring retail, dining, residential, and civic spaces and serving as a hub for community events and entertainment.
-
C.
McCarren Park
McCarren Park is a popular public park in North Brooklyn known for its athletic fields, pool, and frequent cultural events and concerts.
-
D.
Vellucci Plaza
Vellucci Plaza is a small public square and community gathering spot located in the Inman Square neighborhood of Cambridge, Massachusetts.
-
E.
Puente Hills
Puente Hills is a low, rolling range of hills in Southern California known for its suburban communities, open-space preserves, and former large landfill site.
- 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 Mason Target entity description: Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
-
A.
Temescal Gateway Park
Temescal Gateway Park is a popular coastal canyon park in Los Angeles known for its hiking trails, scenic ocean and mountain views, and access to the Santa Monica Mountains.
-
B.
Frisco Square
Frisco Square is a mixed-use urban center in Frisco, Texas, featuring retail, dining, residential, and civic spaces and serving as a hub for community events and entertainment.
-
C.
McCarren Park
McCarren Park is a popular public park in North Brooklyn known for its athletic fields, pool, and frequent cultural events and concerts.
-
D.
Vellucci Plaza
Vellucci Plaza is a small public square and community gathering spot located in the Inman Square neighborhood of Cambridge, Massachusetts.
-
E.
Puente Hills
Puente Hills is a low, rolling range of hills in Southern California known for its suburban communities, open-space preserves, and former large landfill site.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
arts center
ⓘ
cultural center ⓘ historic military post ⓘ recreational area ⓘ |
| adjacentTo |
Aquatic Park
ⓘ
San Francisco Maritime National Historical Park ⓘ |
| city | San Francisco ⓘ |
| connectedBy | San Francisco Municipal Railway bus lines ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentUse |
arts venue
ⓘ
cultural events venue ⓘ office space for nonprofits ⓘ recreation area ⓘ |
| formerlyUsedAs |
U.S. Army post
ⓘ
military port of embarkation ⓘ |
| governingBody |
Golden Gate National Recreation Area
ⓘ
surface form:
Golden Gate National Recreation Area administration
|
| hasBuildingType |
barracks
ⓘ
former military warehouses ⓘ |
| hasEvent |
art exhibitions
ⓘ
farmers market ⓘ performing arts shows ⓘ |
| hasFacility |
art galleries
ⓘ
event spaces ⓘ marina ⓘ restaurants ⓘ theaters ⓘ |
| hasLandscapeFeature |
lawns
ⓘ
waterfront promenade ⓘ |
| hasPart |
Fort Mason
self-linksurface differs
ⓘ
surface form:
Fort Mason Center for Arts & Culture
Great Meadow Park ⓘ Fort Mason self-linksurface differs ⓘ
surface form:
Lower Fort Mason
Fort Mason self-linksurface differs ⓘ
surface form:
Upper Fort Mason
|
| hasViewOf |
Alcatraz Island
ⓘ
Angel Island ⓘ |
| heritageStatus | historic site ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco ⓘ United States of America ⓘ
surface form:
United States
|
| locatedOn | northern waterfront of San Francisco ⓘ |
| near |
Fisherman’s Wharf
ⓘ
Golden Gate Bridge ⓘ Marina Green ⓘ |
| neighborhood | Marina District ⓘ |
| operatedBy | National Park Service ⓘ |
| overlooks | San Francisco Bay ⓘ |
| partOf | Golden Gate National Recreation Area ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| usedDuring |
World War I
ⓘ
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: Fort Mason Description of subject: Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Fort Mason Center for Arts & Culture
subject surface form:
Fort Mason
this entity surface form:
Upper Fort Mason
subject surface form:
Fort Mason
this entity surface form:
Lower Fort Mason
subject surface form:
Fort Mason
this entity surface form:
Fort Mason Center for Arts & Culture
this entity surface form:
Upper Fort Mason
this entity surface form:
Lower Fort Mason
this entity surface form:
Fort Mason Center for Arts & Culture
subject surface form:
Millard F. Harmon
this entity surface form:
Fort Mason, California