San Francisco Municipal Railway substations
E432288
The San Francisco Municipal Railway substations are historic electrical power facilities in San Francisco designed in the early 20th century, notable for their Beaux-Arts–influenced architecture and role in supporting the city’s streetcar and trolley systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Francisco Municipal Railway substations canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4322244 — 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 Municipal Railway substations Context triple: [Bakewell & Brown, notableWork, San Francisco Municipal Railway substations]
-
A.
San Francisco 3rd and Townsend Street station
San Francisco 3rd and Townsend Street station was a former Caltrain commuter rail terminal in San Francisco that served as the line’s city terminus before operations moved to the nearby 4th and King Street station.
-
B.
San Francisco 4th and King Street station
San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
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C.
Milpitas station
Milpitas station is a Bay Area Rapid Transit (BART) station in Milpitas, California, serving as a key transit hub in Silicon Valley with connections to regional rail and bus services.
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D.
San Mateo station
San Mateo station is a Caltrain commuter rail stop in San Mateo, California, serving as a key transit point for Peninsula rail passengers between San Francisco and San Jose.
-
E.
Alum Rock station
Alum Rock station is a public transit stop in San Jose, California, serving as a terminus on the Santa Clara Valley Transportation Authority (VTA) light rail system.
- 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 Municipal Railway substations Target entity description: The San Francisco Municipal Railway substations are historic electrical power facilities in San Francisco designed in the early 20th century, notable for their Beaux-Arts–influenced architecture and role in supporting the city’s streetcar and trolley systems.
-
A.
San Francisco 3rd and Townsend Street station
San Francisco 3rd and Townsend Street station was a former Caltrain commuter rail terminal in San Francisco that served as the line’s city terminus before operations moved to the nearby 4th and King Street station.
-
B.
San Francisco 4th and King Street station
San Francisco 4th and King Street station is a major commuter rail terminal in San Francisco that serves as the northern terminus for Caltrain services between the city and the Peninsula/Silicon Valley.
-
C.
Milpitas station
Milpitas station is a Bay Area Rapid Transit (BART) station in Milpitas, California, serving as a key transit hub in Silicon Valley with connections to regional rail and bus services.
-
D.
San Mateo station
San Mateo station is a Caltrain commuter rail stop in San Mateo, California, serving as a key transit point for Peninsula rail passengers between San Francisco and San Jose.
-
E.
Alum Rock station
Alum Rock station is a public transit stop in San Jose, California, serving as a terminus on the Santa Clara Valley Transportation Authority (VTA) light rail system.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
electrical substation network
ⓘ
historic infrastructure ⓘ public transit support facility ⓘ |
| architecturalStyle | Beaux-Arts–influenced architecture ⓘ |
| connectsTo |
San Francisco streetcar lines
NERFINISHED
ⓘ
San Francisco trolleybus lines NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| designedAs | urban industrial buildings integrated into streetscape ⓘ |
| designedFor | traction power ⓘ |
| electrificationType | electric traction power ⓘ |
| hasFunction |
distribution of traction power
ⓘ
rectification of electric current ⓘ voltage transformation ⓘ |
| hasPhysicalForm |
masonry-clad utility structures
ⓘ
reinforced concrete buildings ⓘ |
| heritageStatus | historic resource ⓘ |
| historicalRole |
supporting electrification of urban transit in San Francisco
ⓘ
supporting expansion of municipal streetcar service ⓘ |
| inception | early 20th century ⓘ |
| industry | public transportation ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| maintainedBy | San Francisco Municipal Transportation Agency NERFINISHED ⓘ |
| notableFor |
Beaux-Arts–influenced facades
ⓘ
early 20th-century utility architecture ⓘ role in development of San Francisco transit ⓘ |
| ownedBy |
San Francisco Municipal Railway
NERFINISHED
ⓘ
San Francisco Municipal Transportation Agency NERFINISHED ⓘ |
| partOf |
San Francisco Municipal Railway power system
ⓘ
San Francisco public transit infrastructure ⓘ |
| poweredSystem |
San Francisco streetcar network
NERFINISHED
ⓘ
San Francisco trolleybus network NERFINISHED ⓘ overhead catenary and trolley wire systems ⓘ |
| serviceArea | City and County of San Francisco NERFINISHED ⓘ |
| significantPeriod | early 1900s ⓘ |
| usedFor |
electric power conversion
ⓘ
electric power distribution ⓘ streetcar system power supply ⓘ trolleybus system power supply ⓘ |
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 Municipal Railway substations Description of subject: The San Francisco Municipal Railway substations are historic electrical power facilities in San Francisco designed in the early 20th century, notable for their Beaux-Arts–influenced architecture and role in supporting the city’s streetcar and trolley systems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.