Concord station
E621514
Concord station is a Bay Area Rapid Transit (BART) rail station serving the city of Concord in Contra Costa County, California.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Concord station canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T6815887 — 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: Concord station Context triple: [Concord, hasBARTStation, Concord station]
-
A.
Hawthorne station
Hawthorne station is a commuter rail stop in Mount Pleasant, New York, serving passengers on the Metro-North Railroad’s Harlem Line.
-
B.
Lenox station
Lenox station is an Atlanta rapid transit station on MARTA’s Gold Line serving the Buckhead commercial and shopping district.
-
C.
Belmont station
Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
-
D.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
E.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
- 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: Concord station Target entity description: Concord station is a Bay Area Rapid Transit (BART) rail station serving the city of Concord in Contra Costa County, California.
-
A.
Hawthorne station
Hawthorne station is a commuter rail stop in Mount Pleasant, New York, serving passengers on the Metro-North Railroad’s Harlem Line.
-
B.
Lenox station
Lenox station is an Atlanta rapid transit station on MARTA’s Gold Line serving the Buckhead commercial and shopping district.
-
C.
Belmont station
Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
-
D.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
E.
Medford station
Medford station is a Long Island Rail Road commuter rail stop located in Medford, New York, serving passengers on the Ronkonkoma Branch.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Bay Area Rapid Transit station
ⓘ
railway station ⓘ |
| accessible | yes ⓘ |
| connectsTo |
County Connection bus services
ⓘ
linked to:
County Connection bus system
|
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | third rail ⓘ |
| fareSystem | Clipper card ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasBusConnections | yes ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasFareGates | yes ⓘ |
| hasParkAndRide | yes ⓘ |
| hasParking | yes ⓘ |
| hasRestrooms | yes ⓘ |
| hasTicketMachines | yes ⓘ |
| isOnCorridor |
BART Pittsburg/Bay Point–SFO corridor
ⓘ
linked to:
East Bay BART corridor
|
| locatedIn |
California
ⓘ
linked to:
California, United States
Concord, California ⓘ
linked to:
Concord, California, United States
Contra Costa County, California ⓘ
linked to:
Contra Costa County
United States ⓘ
linked to:
United States of America
|
| openingDate | 1973 ⓘ |
| operator |
Bay Area Rapid Transit
ⓘ
linked to:
BART
|
| ownedBy |
Bay Area Rapid Transit
ⓘ
linked to:
BART
|
| partOf |
BART system
ⓘ
linked to:
BART
|
| platformType | island platform ⓘ |
| railGauge | broad gauge (5 ft 6 in) ⓘ |
| servedByLine |
BART Antioch–SFO+Millbrae line
ⓘ
BART Yellow Line ⓘ |
| serves |
city of Concord, California
ⓘ
linked to:
Concord, California, United States
|
| servesCounty |
Contra Costa County, California
ⓘ
linked to:
Contra Costa County
|
| servesRegion | San Francisco Bay Area ⓘ |
| structureType | at-grade station ⓘ |
| zone | BART fare zone in Contra Costa County ⓘ |
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: Concord station Description of subject: Concord station is a Bay Area Rapid Transit (BART) rail station serving the city of Concord in Contra Costa County, California.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.