BART Transbay Zone 1
E305606
BART Transbay Zone 1 is a core fare zone in the Bay Area Rapid Transit system that covers central transbay stations in the San Francisco financial district and nearby areas.
All labels observed (3)
| Label | Occurrences |
|---|---|
| BART Transbay Zone 1 canonical | 1 |
| BART Zone 1 | 1 |
| BART fare system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2870426 — 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 Transbay Zone 1 Context triple: [Embarcadero station, fareZone, BART Transbay Zone 1]
-
A.
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.
-
B.
BART
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
-
C.
AC Transit
AC Transit is a public bus agency serving the East Bay region of the San Francisco Bay Area, providing local and transbay bus services.
-
D.
Emeryville station
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
-
E.
MacArthur BART station
MacArthur BART station is a major Bay Area Rapid Transit hub in Oakland, California, serving as a key transfer point for multiple lines and regional commuters.
- 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 Transbay Zone 1 Target entity description: BART Transbay Zone 1 is a core fare zone in the Bay Area Rapid Transit system that covers central transbay stations in the San Francisco financial district and nearby areas.
-
A.
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.
-
B.
BART
BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
-
C.
AC Transit
AC Transit is a public bus agency serving the East Bay region of the San Francisco Bay Area, providing local and transbay bus services.
-
D.
Emeryville station
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
-
E.
MacArthur BART station
MacArthur BART station is a major Bay Area Rapid Transit hub in Oakland, California, serving as a key transfer point for multiple lines and regional commuters.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
BART fare zone
ⓘ
fare zone ⓘ |
| appliesTo | BART transbay trips ⓘ |
| coversArea |
Financial District (San Francisco)
ⓘ
surface form:
San Francisco Financial District
central transbay stations ⓘ |
| currency | USD ⓘ |
| fareContext | Transbay corridor pricing ⓘ |
| fareMedium |
Clipper card
ⓘ
paper ticket (legacy) ⓘ |
| farePolicyScope | inter-station pricing within transbay core ⓘ |
| fareRole |
core fare zone
ⓘ
transbay fare zone ⓘ |
| fareType | distance-based ⓘ |
| hasMode | rapid transit ⓘ |
| isCoreFor | central San Francisco BART stations ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Francisco Bay Area ⓘ United States of America ⓘ
surface form:
United States
|
| networkSegment | Transbay BART network ⓘ |
| operator |
San Francisco Bay Area Rapid Transit District
ⓘ
surface form:
Bay Area Rapid Transit District
|
| partOf |
BART fare structure
ⓘ
BART ⓘ
surface form:
Bay Area Rapid Transit
|
| publicTransitSystem | BART ⓘ |
| usedBySystem | BART distance-based fares ⓘ |
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 Transbay Zone 1 Description of subject: BART Transbay Zone 1 is a core fare zone in the Bay Area Rapid Transit system that covers central transbay stations in the San Francisco financial district and nearby areas.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
BART fare system
this entity surface form:
BART Zone 1