San Francisco City Hall
E17940
San Francisco City Hall is a historic Beaux-Arts landmark in the city’s Civic Center, serving as the seat of government and a prominent architectural symbol of San Francisco.
All labels observed (14)
How this entity was disambiguated
This entity first appeared as the object of triple T138081 — 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: San Francisco City Hall Context triple: [San Francisco Board of Supervisors, headquartersLocation, San Francisco City Hall]
-
A.
Los Angeles City Hall
Los Angeles City Hall is the historic and iconic main municipal building of Los Angeles, housing the mayor’s office and the city council chambers.
-
B.
California State Capitol
The California State Capitol is the historic government building in Sacramento that houses the chambers and offices of the state's legislative and executive branches.
-
C.
Coit Tower
Coit Tower is an iconic white concrete observation tower atop Telegraph Hill in San Francisco, known for its panoramic city views and historic Depression-era murals.
-
D.
Berkeley Landmark
Berkeley Landmark is a local historic designation in Berkeley, California, recognizing buildings, structures, and sites of significant architectural, cultural, or historical importance.
-
E.
Portland City Hall
Portland City Hall is the historic municipal building in downtown Portland, Oregon, that houses the offices and chambers of the city’s government.
- 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: San Francisco City Hall Target entity description: San Francisco City Hall is a historic Beaux-Arts landmark in the city’s Civic Center, serving as the seat of government and a prominent architectural symbol of San Francisco.
-
A.
Los Angeles City Hall
Los Angeles City Hall is the historic and iconic main municipal building of Los Angeles, housing the mayor’s office and the city council chambers.
-
B.
California State Capitol
The California State Capitol is the historic government building in Sacramento that houses the chambers and offices of the state's legislative and executive branches.
-
C.
Coit Tower
Coit Tower is an iconic white concrete observation tower atop Telegraph Hill in San Francisco, known for its panoramic city views and historic Depression-era murals.
-
D.
Berkeley Landmark
Berkeley Landmark is a local historic designation in Berkeley, California, recognizing buildings, structures, and sites of significant architectural, cultural, or historical importance.
-
E.
Portland City Hall
Portland City Hall is the historic municipal building in downtown Portland, Oregon, that houses the offices and chambers of the city’s government.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Beaux-Arts building
ⓘ
city hall ⓘ government building ⓘ historic building ⓘ landmark ⓘ |
| adjacentTo | Civic Center Plaza ⓘ |
| architect |
Arthur Brown Jr.
ⓘ
John Bakewell Jr. ⓘ |
| architecturalFirm | Bakewell & Brown ⓘ |
| architecturalStyle |
Beaux-Arts
ⓘ
Classical Revival ⓘ |
| completionDate | 1915 ⓘ |
| constructionStart | 1913 ⓘ |
| coordinates | 37.7793°N 122.4192°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| domeHeight |
about 307 feet
ⓘ
about 93 meters ⓘ |
| domeType | ornate ribbed dome ⓘ |
| floorCount | 4 ⓘ |
| function | seat of government of the City and County of San Francisco ⓘ |
| hasBasement | yes ⓘ |
| hasDome | yes ⓘ |
| heritageDesignation |
National Register of Historic Places
ⓘ
surface form:
National Register of Historic Places listing
National Historic Landmark ⓘ
surface form:
U.S. National Historic Landmark
|
| heritageDesignationDate | 1978 ⓘ |
| houses |
Office of the Mayor of San Francisco
ⓘ
San Francisco Board of Supervisors ⓘ City Attorney of San Francisco ⓘ
surface form:
San Francisco City Attorney
San Francisco Office of the Assessor-Recorder ⓘ
surface form:
San Francisco County Clerk
|
| inception | 1915 ⓘ |
| locatedIn |
Civic Center, San Francisco
ⓘ
San Francisco ⓘ |
| locatedInAdministrativeEntity |
California, United States
ⓘ
surface form:
California
San Francisco County ⓘ |
| materialUsed |
granite
ⓘ
sandstone ⓘ steel frame ⓘ |
| near |
Asian Art Museum of San Francisco
ⓘ
San Francisco War Memorial and Performing Arts Center ⓘ |
| notableFor |
grand ceremonial rotunda
ⓘ
one of the tallest domes in the United States ⓘ prominent Beaux-Arts façade ⓘ |
| opened | December 28, 1915 ⓘ |
| owner |
San Francisco County
ⓘ
surface form:
City and County of San Francisco
|
| reasonForReplacement | destruction of previous city hall in the 1906 San Francisco earthquake ⓘ |
| renovation | seismic retrofit in the 1990s ⓘ |
| reopenedAfterRenovation | 1999 ⓘ |
| replaced |
San Francisco City Hall
self-linksurface differs
ⓘ
surface form:
Old San Francisco City Hall
|
| usedFor |
civil marriage ceremonies
ⓘ
political demonstrations on surrounding plaza ⓘ public events ⓘ |
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: San Francisco City Hall Description of subject: San Francisco City Hall is a historic Beaux-Arts landmark in the city’s Civic Center, serving as the seat of government and a prominent architectural symbol of San Francisco.
Referenced by (54)
Full triples — surface form annotated when it differs from this entity's canonical label.
Phillip Burton Federal Building and United States Courthouse
→
locatedNear
→
San Francisco City Hall
ⓘ