Caltrain stations
E537938
Caltrain stations are commuter rail stops along the San Francisco Peninsula and South Bay that serve as key transit hubs connecting cities between San Francisco and Gilroy.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Caltrain (nearby Menlo Park and Redwood City stations) | 1 |
| Caltrain stations canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5661448 — 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: Caltrain stations Context triple: [Stanford Marguerite Shuttle, connects, Caltrain stations]
-
A.
Belmont Caltrain station
Belmont Caltrain station is a commuter rail station in Belmont, California, providing Peninsula rail service on the Caltrain line between San Francisco and San Jose.
-
B.
San Carlos Caltrain station
San Carlos Caltrain station is a commuter rail station on the Caltrain line serving the city of San Carlos in San Mateo County, California.
-
C.
San Bruno Caltrain station
San Bruno Caltrain station is a commuter rail stop on Caltrain’s Peninsula corridor serving passengers in the city of San Bruno, south of San Francisco.
-
D.
Broadway Caltrain station
Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
-
E.
Burlingame Caltrain station
Burlingame Caltrain station is a commuter rail station in Burlingame, California, served by Caltrain trains along the San Francisco Peninsula corridor.
- 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: Caltrain stations Target entity description: Caltrain stations are commuter rail stops along the San Francisco Peninsula and South Bay that serve as key transit hubs connecting cities between San Francisco and Gilroy.
-
A.
Belmont Caltrain station
Belmont Caltrain station is a commuter rail station in Belmont, California, providing Peninsula rail service on the Caltrain line between San Francisco and San Jose.
-
B.
San Carlos Caltrain station
San Carlos Caltrain station is a commuter rail station on the Caltrain line serving the city of San Carlos in San Mateo County, California.
-
C.
San Bruno Caltrain station
San Bruno Caltrain station is a commuter rail stop on Caltrain’s Peninsula corridor serving passengers in the city of San Bruno, south of San Francisco.
-
D.
Broadway Caltrain station
Broadway Caltrain station is a commuter rail stop in Burlingame, California, serving passengers on Caltrain’s Peninsula Corridor between San Francisco and San Jose.
-
E.
Burlingame Caltrain station
Burlingame Caltrain station is a commuter rail station in Burlingame, California, served by Caltrain trains along the San Francisco Peninsula corridor.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail station
ⓘ
railway station network ⓘ |
| accessibility | many stations are ADA accessible ⓘ |
| accessMode |
bicycle access
ⓘ
bus connections ⓘ park-and-ride ⓘ |
| bicycleFacilities |
bike lockers
ⓘ
bike racks ⓘ bike share access at some stations ⓘ |
| connects |
Peninsula suburbs to major job centers
ⓘ
San Francisco and Silicon Valley NERFINISHED ⓘ |
| connectsTo |
Amtrak Capitol Corridor (via transfer)
ⓘ
BART NERFINISHED ⓘ SamTrans NERFINISHED ⓘ San Francisco Municipal Railway NERFINISHED ⓘ Santa Clara Valley Transportation Authority NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrificationStatus | partially electrified ⓘ |
| fareIntegration | Clipper card acceptance ⓘ |
| fareSystem | zone-based fares ⓘ |
| hasService |
Baby Bullet express trains
NERFINISHED
ⓘ
limited-stop trains ⓘ local trains ⓘ |
| locatedIn |
San Francisco Bay Area
ⓘ
San Francisco Peninsula NERFINISHED ⓘ South Bay NERFINISHED ⓘ |
| offPeakUse | regional travel ⓘ |
| operator | Caltrain NERFINISHED ⓘ |
| ownedBy | Peninsula Corridor Joint Powers Board NERFINISHED ⓘ |
| peakUse | commuter travel ⓘ |
| primaryCorridor | San Francisco–San Jose NERFINISHED ⓘ |
| railLine | Caltrain main line NERFINISHED ⓘ |
| role |
key transit hubs along the San Francisco Peninsula
ⓘ
regional rail access to Silicon Valley ⓘ |
| safetyFeatures |
grade crossings at many locations
ⓘ
pedestrian crossings or overpasses at some stations ⓘ |
| serves |
Gilroy, California
NERFINISHED
ⓘ
Peninsula cities between San Francisco and San Jose ⓘ San Francisco, California NERFINISHED ⓘ San Jose, California NERFINISHED ⓘ |
| southernExtension | San Jose–Gilroy NERFINISHED ⓘ |
| ticketing | platform or station ticket machines ⓘ |
| ticketValidation | proof-of-payment system ⓘ |
| timePeriod | primarily serve weekday commuters but also weekend riders ⓘ |
| transitType | commuter rail ⓘ |
| typicalPlatformConfiguration |
island platforms
ⓘ
side platforms ⓘ |
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: Caltrain stations Description of subject: Caltrain stations are commuter rail stops along the San Francisco Peninsula and South Bay that serve as key transit hubs connecting cities between San Francisco and Gilroy.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Caltrain (nearby Menlo Park and Redwood City stations)