Union City station
E393032
Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Union City station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3835790 — 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: Union City station Context triple: [Berryessa/North San José–Richmond line, connectsStation, Union City station]
-
A.
Snyder station
Snyder station is an underground rapid transit stop on SEPTA’s Broad Street Line serving South Philadelphia.
-
B.
Forest Park station
Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
-
C.
Pelham station
Pelham station is a commuter rail stop in Pelham, New York, on the Metro-North Railroad's New Haven Line.
-
D.
Newark station
Newark station is a passenger rail station in Newark, Delaware, serving Amtrak and SEPTA regional rail services.
-
E.
Fairview Heights station
Fairview Heights station is a light rail stop in Inglewood, California, serving passengers on Los Angeles Metro's K Line.
- 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: Union City station Target entity description: Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
-
A.
Snyder station
Snyder station is an underground rapid transit stop on SEPTA’s Broad Street Line serving South Philadelphia.
-
B.
Forest Park station
Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
-
C.
Pelham station
Pelham station is a commuter rail stop in Pelham, New York, on the Metro-North Railroad's New Haven Line.
-
D.
Newark station
Newark station is a passenger rail station in Newark, Delaware, serving Amtrak and SEPTA regional rail services.
-
E.
Fairview Heights station
Fairview Heights station is a light rail stop in Inglewood, California, serving passengers on Los Angeles Metro's K Line.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Bay Area Rapid Transit station
ⓘ
rapid transit station ⓘ transport infrastructure ⓘ |
| accessible | yes ⓘ |
| connectsRegion |
East Bay
ⓘ
Transbay BART network ⓘ
surface form:
San Francisco Peninsula (via Transbay Tube connections)
|
| connectsTo | other parts of the San Francisco Bay Area ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrificationSystem | third rail ⓘ |
| fareSystem | BART fare system ⓘ |
| fareZoneSystem | distance-based ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasBusConnections | yes ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasFareGates | yes ⓘ |
| hasLighting | yes ⓘ |
| hasParking | yes ⓘ |
| hasPassengerInformationDisplays | yes ⓘ |
| hasRestrooms | yes ⓘ |
| hasSecurityCameras | yes ⓘ |
| hasShelteredWaitingAreas | yes ⓘ |
| hasSignage | yes ⓘ |
| hasTicketMachines | yes ⓘ |
| isElectrified | yes ⓘ |
| isPartOfCorridor | East Bay BART corridor ⓘ |
| line |
BART Berryessa/North San José–Daly City line
ⓘ
surface form:
BART Berryessa/North San José–Richmond line
Dublin/Pleasanton–Daly City line ⓘ
surface form:
BART Dublin/Pleasanton–Daly City line (historical/operational variants)
BART Fremont line ⓘ
surface form:
BART Richmond–Warm Springs/South Fremont line
|
| locatedIn |
Alameda County
ⓘ
surface form:
Alameda County, California
California, United States ⓘ
surface form:
California
Union City, California ⓘ United States of America ⓘ
surface form:
United States
|
| locatedInMetropolitanArea | San Francisco Bay Area ⓘ |
| operator |
BART
ⓘ
surface form:
Bay Area Rapid Transit
|
| ownedBy |
BART
ⓘ
surface form:
Bay Area Rapid Transit
|
| partOf |
San Francisco Bay Area Rapid Transit District
ⓘ
surface form:
Bay Area Rapid Transit system
|
| platformType | island platform ⓘ |
| primaryMode | heavy rail rapid transit ⓘ |
| publicTransitSystem | BART ⓘ |
| railGauge | broad gauge ⓘ |
| safetySystem | automatic train control ⓘ |
| serves |
East Bay
ⓘ
Union City, California ⓘ |
| servesAs | commuter rail hub for Union City ⓘ |
| structureType | elevated station ⓘ |
| ticketingSystem | Clipper card compatible ⓘ |
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: Union City station Description of subject: Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.