Central Subway
E17240
Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Central Subway canonical | 14 |
| Central Subway project | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T138224 — 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: Central Subway Context triple: [Chinatown (San Francisco), publicTransit, Central Subway]
-
A.
Osaka Metro
Osaka Metro is the rapid transit network serving Japan’s city of Osaka and its surrounding urban area.
-
B.
Tennoji Station
Tennoji Station is a major railway and transportation hub in Osaka, Japan, serving multiple JR, subway, and private railway lines and connecting key commercial and tourist areas.
-
C.
Namba Station
Namba Station is one of Osaka’s major railway and subway terminals, serving as a key commercial and transportation hub in the city’s bustling Namba district.
-
D.
Osaka Station
Osaka Station is a major railway terminal and transportation hub in Osaka, Japan, serving numerous local and long-distance train lines and connecting key commercial districts.
-
E.
Shin-Osaka Station
Shin-Osaka Station is a major railway and Shinkansen hub in Osaka that serves as a key gateway connecting the city with other regions across Japan.
- 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: Central Subway Target entity description: Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
-
A.
Osaka Metro
Osaka Metro is the rapid transit network serving Japan’s city of Osaka and its surrounding urban area.
-
B.
J train
The J train is a New York City Subway service that runs along the BMT Jamaica Line, connecting Jamaica, Queens with Lower Manhattan via Brooklyn.
-
C.
Tennoji Station
Tennoji Station is a major railway and transportation hub in Osaka, Japan, serving multiple JR, subway, and private railway lines and connecting key commercial and tourist areas.
-
D.
Namba Station
Namba Station is one of Osaka’s major railway and subway terminals, serving as a key commercial and transportation hub in the city’s bustling Namba district.
-
E.
Osaka Station
Osaka Station is a major railway terminal and transportation hub in Osaka, Japan, serving numerous local and long-distance train lines and connecting key commercial districts.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Muni Metro line
ⓘ
light rail line ⓘ |
| cityPlanner | San Francisco County Transportation Authority ⓘ |
| connectsDistrict |
Chinatown
ⓘ
surface form:
Chinatown, San Francisco
Financial District vicinity ⓘ South of Market (SoMa) ⓘ
surface form:
South of Market, San Francisco
|
| connectsWith |
BART
ⓘ
Market Street subway ⓘ Muni Metro Market Street lines ⓘ Powell Street terminal ⓘ
surface form:
Powell Street station
T Third Street line ⓘ |
| constructionStartDate | 2010 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead lines ⓘ |
| fareSystem | Muni fare system ⓘ |
| fullRevenueServiceStartDate | 2023-01-07 ⓘ |
| fundedBy |
San Francisco County
ⓘ
surface form:
City and County of San Francisco
Federal Transit Administration ⓘ California, United States ⓘ
surface form:
State of California
|
| hasCharacter |
at-grade
ⓘ
underground ⓘ |
| hasStation |
4th and Brannan station
ⓘ
Chinatown–Rose Pak station ⓘ Union Square/Market Street station ⓘ Yerba Buena/Moscone station ⓘ |
| hasTerminus |
4th and King station
ⓘ
Chinatown–Rose Pak station ⓘ |
| hasTunnelSection |
beneath 4th Street
ⓘ
beneath Stockton Street ⓘ |
| lineLength | approximately 1.7 miles ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco ⓘ United States of America ⓘ
surface form:
United States
|
| openedForService | 2022-11-19 ⓘ |
| operator |
San Francisco Muni
ⓘ
surface form:
San Francisco Municipal Transportation Agency
|
| owner |
San Francisco Muni
ⓘ
surface form:
San Francisco Municipal Transportation Agency
|
| partOf |
San Francisco Muni
ⓘ
surface form:
Muni Metro
|
| partOfProject | Third Street Light Rail Project Phase 2 ⓘ |
| primaryDirection | north–south ⓘ |
| purpose |
improve north–south transit service in San Francisco
ⓘ
provide rapid transit access to Chinatown ⓘ |
| serves |
Chinatown
ⓘ
surface form:
Chinatown, San Francisco
South of Market (SoMa) ⓘ
surface form:
SoMa, San Francisco
Union Square ⓘ
surface form:
Union Square, San Francisco
South of Market (SoMa) ⓘ
surface form:
Yerba Buena/Moscone area
|
| trackGauge | standard gauge ⓘ |
| transitMode | light rail ⓘ |
| usedBy | T Third Street line ⓘ |
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: Central Subway Description of subject: Central Subway is a light rail extension of San Francisco’s Muni Metro system that provides improved north–south transit service, including a key connection to the Chinatown neighborhood.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Chinatown (San Francisco)
this entity surface form:
Central Subway project