Oakland Airport Connector
E219619
The Oakland Airport Connector is an automated people mover line in Oakland, California, that links the city’s BART rail system with Oakland International Airport.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T1943195 — 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: Oakland Airport Connector Context triple: [Oakland International Airport, hasPublicTransitConnection, Oakland Airport Connector]
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Altamont Corridor Express
Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
-
C.
Transbay Tube
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
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D.
Paulina Connector
Paulina Connector is a short elevated rail link in Chicago that connects segments of the city's rapid transit system, facilitating train movements and route flexibility.
-
E.
Monterey–San Jose Thruway Motorcoach
The Monterey–San Jose Thruway Motorcoach is an intercity bus service that connects Monterey and surrounding coastal communities with San Jose, providing coordinated feeder transportation to Amtrak rail services.
- 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: Oakland Airport Connector Target entity description: The Oakland Airport Connector is an automated people mover line in Oakland, California, that links the city’s BART rail system with Oakland International Airport.
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Altamont Corridor Express
Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
-
C.
Transbay Tube
The Transbay Tube is an underwater rail tunnel beneath San Francisco Bay that carries BART trains between San Francisco and Oakland.
-
D.
Paulina Connector
Paulina Connector is a short elevated rail link in Chicago that connects segments of the city's rapid transit system, facilitating train movements and route flexibility.
-
E.
Monterey–San Jose Thruway Motorcoach
The Monterey–San Jose Thruway Motorcoach is an intercity bus service that connects Monterey and surrounding coastal communities with San Jose, providing coordinated feeder transportation to Amtrak rail services.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
airport rail link
ⓘ
automated people mover line ⓘ transport infrastructure project ⓘ |
| accessibility | wheelchair accessible ⓘ |
| automationLevel | fully automated ⓘ |
| connectsWith |
BART
ⓘ
surface form:
Bay Area Rapid Transit
Coliseum BART station ⓘ
surface form:
Coliseum BART Station
|
| constructionMethod | design-build contract ⓘ |
| constructionStartDate | 2010 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | electric ⓘ |
| environmentalImpactReview | subject to California Environmental Quality Act ⓘ |
| fareMediumAccepted | Clipper card ⓘ |
| fareSystem | integrated with BART fare system ⓘ |
| fundingSources |
federal funds
ⓘ
local funds ⓘ regional funds ⓘ |
| governedBy |
BART
ⓘ
surface form:
BART Board of Directors
|
| hasStation |
Coliseum station
ⓘ
surface form:
Coliseum Station
Oakland International Airport station ⓘ
surface form:
Oakland International Airport Station
|
| infrastructureType | elevated guideway ⓘ |
| isPartOf |
BART
ⓘ
surface form:
BART system
|
| lineLength |
approximately 3.2 miles
ⓘ
approximately 5.1 kilometers ⓘ |
| locatedInCounty |
Alameda County
ⓘ
surface form:
Alameda County, California
|
| locatedInMetropolitanArea |
San Francisco Bay Area
ⓘ
surface form:
San Francisco–Oakland–Berkeley metropolitan area
|
| location |
Oakland
ⓘ
surface form:
Oakland, California
|
| nearbyCity | Oakland ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 2014-11-22 ⓘ |
| operator |
BART
ⓘ
surface form:
Bay Area Rapid Transit
|
| owner |
BART
ⓘ
surface form:
Bay Area Rapid Transit
|
| primaryFunction | airport access ⓘ |
| projectCost | hundreds of millions of US dollars ⓘ |
| propulsionSystem | cable-hauled ⓘ |
| regionServed | San Francisco Bay Area ⓘ |
| replaced |
BART
ⓘ
surface form:
AirBART bus service
|
| rollingStock | cable-propelled automated people mover vehicles ⓘ |
| safetySystem | automated train control ⓘ |
| serves | Oakland International Airport ⓘ |
| servicePattern | shuttle service ⓘ |
| terminus |
Coliseum station
ⓘ
surface form:
Coliseum Station
Oakland International Airport station ⓘ
surface form:
Oakland International Airport Station
|
| trackGauge | standard gauge ⓘ |
| transportMode | rail ⓘ |
| travelTime | about 8 minutes ⓘ |
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: Oakland Airport Connector Description of subject: The Oakland Airport Connector is an automated people mover line in Oakland, California, that links the city’s BART rail system with Oakland International Airport.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
BART Coliseum–Oakland International Airport line
this entity surface form:
Oakland Airport Connector at Coliseum station
this entity surface form:
Oakland International Airport Connector via Coliseum station
this entity surface form:
Coliseum–Oakland International Airport line
this entity surface form:
Oakland Airport Connector (via Coliseum station)
this entity surface form:
Oakland Airport Connector line