BART Red Line
E575950
The BART Red Line is a Bay Area Rapid Transit service route that runs through San Francisco and connects key destinations including downtown San Francisco, Oakland, and other parts of the Bay Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| BART Red Line canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T6046759 — 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: BART Red Line Context triple: [Civic Center/UN Plaza station, hasService, BART Red Line]
-
A.
BART Orange Line
The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
-
B.
BART Green Line
The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
-
C.
BART Fremont line
The BART Fremont line is a Bay Area Rapid Transit route in the San Francisco Bay Area that historically extended service to the city of Fremont in southern Alameda County.
-
D.
BART Antioch–SFO+Millbrae line
The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
-
E.
Richmond–Millbrae line
The Richmond–Millbrae line is a Bay Area Rapid Transit (BART) service route in the San Francisco Bay Area that connects Richmond in the East Bay with Millbrae near San Francisco International Airport.
- 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: BART Red Line Target entity description: The BART Red Line is a Bay Area Rapid Transit service route that runs through San Francisco and connects key destinations including downtown San Francisco, Oakland, and other parts of the Bay Area.
-
A.
BART Orange Line
The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
-
B.
BART Green Line
The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
-
C.
BART Fremont line
The BART Fremont line is a Bay Area Rapid Transit route in the San Francisco Bay Area that historically extended service to the city of Fremont in southern Alameda County.
-
D.
BART Antioch–SFO+Millbrae line
The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
-
E.
Richmond–Millbrae line
The Richmond–Millbrae line is a Bay Area Rapid Transit (BART) service route in the San Francisco Bay Area that connects Richmond in the East Bay with Millbrae near San Francisco International Airport.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
BART service pattern
ⓘ
rapid transit service ⓘ |
| accessibility | wheelchair accessible ⓘ |
| colorDesignation | red ⓘ |
| connectsArea |
Oakland city center
NERFINISHED
ⓘ
downtown San Francisco NERFINISHED ⓘ |
| connectsKeyDestinations |
Oakland downtown
NERFINISHED
ⓘ
downtown San Francisco financial district ⓘ other Bay Area destinations ⓘ |
| connectsWith |
BART Blue Line
NERFINISHED
ⓘ
BART Green Line NERFINISHED ⓘ BART Orange Line NERFINISHED ⓘ BART Yellow Line NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareCollection | proof-of-payment ⓘ |
| fareSystem | distance-based fare ⓘ |
| hasPlatformType | high-platform ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco Bay Area ⓘ |
| mode | rail ⓘ |
| operator | Bay Area Rapid Transit NERFINISHED ⓘ |
| owner | San Francisco Bay Area Rapid Transit District NERFINISHED ⓘ |
| partOf | Bay Area Rapid Transit system NERFINISHED ⓘ |
| safetySystem | automatic train control ⓘ |
| servesCity |
Oakland
NERFINISHED
ⓘ
San Francisco NERFINISHED ⓘ |
| servesRegion |
East Bay
NERFINISHED
ⓘ
San Francisco Peninsula NERFINISHED ⓘ |
| servicePatternColor | red ⓘ |
| system | BART NERFINISHED ⓘ |
| ticketMedia |
Clipper card
NERFINISHED
ⓘ
paper ticket ⓘ |
| trackGauge | broad gauge ⓘ |
| transitType | heavy rail ⓘ |
| usesInfrastructure | Transbay Tube NERFINISHED ⓘ |
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: BART Red Line Description of subject: The BART Red Line is a Bay Area Rapid Transit service route that runs through San Francisco and connects key destinations including downtown San Francisco, Oakland, and other parts of the Bay Area.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Civic Center/UN Plaza station