San Mateo Caltrain Station
E806839
San Mateo Caltrain Station is a commuter rail station in San Mateo, California that serves as a key transit hub for Peninsula and Bay Area travelers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Mateo Caltrain Station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9568947 — 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: San Mateo Caltrain Station Context triple: [Downtown San Mateo, hasLandmark, San Mateo Caltrain Station]
-
A.
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.
-
B.
Palo Alto Caltrain Station
Palo Alto Caltrain Station is a major commuter rail station in Palo Alto, California, serving as a key transit hub for Caltrain services along the San Francisco Peninsula.
-
C.
Mountain View Caltrain station
Mountain View Caltrain station is a commuter rail station in Mountain View, California, serving as a key transit hub in Silicon Valley with connections to local light rail and bus services.
-
D.
Burlingame Caltrain station
Burlingame Caltrain station is a commuter rail station in Burlingame, California, served by Caltrain trains along the San Francisco Peninsula corridor.
-
E.
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.
- 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: San Mateo Caltrain Station Target entity description: San Mateo Caltrain Station is a commuter rail station in San Mateo, California that serves as a key transit hub for Peninsula and Bay Area travelers.
-
A.
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.
-
B.
Palo Alto Caltrain Station
Palo Alto Caltrain Station is a major commuter rail station in Palo Alto, California, serving as a key transit hub for Caltrain services along the San Francisco Peninsula.
-
C.
Mountain View Caltrain station
Mountain View Caltrain station is a commuter rail station in Mountain View, California, serving as a key transit hub in Silicon Valley with connections to local light rail and bus services.
-
D.
Burlingame Caltrain station
Burlingame Caltrain station is a commuter rail station in Burlingame, California, served by Caltrain trains along the San Francisco Peninsula corridor.
-
E.
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.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf | commuter rail station ⓘ |
| accessible | yes ⓘ |
| bicycleFacilities | yes ⓘ |
| category |
Caltrain stations in San Mateo County, California
ⓘ
Railway stations in the San Francisco Bay Area ⓘ |
| connectsTo | SamTrans bus services ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrificationStatus | served by electrified Caltrain corridor (planned/underway by mid-2020s) ⓘ |
| fareZone | 3 ⓘ |
| formerOperator | Southern Pacific Railroad NERFINISHED ⓘ |
| hasPlatforms | 2 ⓘ |
| hasServiceType |
limited-stop trains
ⓘ
local trains ⓘ weekday commuter service ⓘ |
| hasTicketMachines | yes ⓘ |
| hasTracks | 2 ⓘ |
| isKeyTransitHubFor |
Peninsula
NERFINISHED
ⓘ
San Francisco Bay Area NERFINISHED ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Mateo County, California ⓘ San Mateo, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| near |
Central Park (San Mateo)
NERFINISHED
ⓘ
Downtown San Mateo NERFINISHED ⓘ |
| opened | 19th century ⓘ |
| operator | Caltrain NERFINISHED ⓘ |
| owner | Caltrain NERFINISHED ⓘ |
| parkingAvailable | yes ⓘ |
| partOf | Caltrain Peninsula Corridor NERFINISHED ⓘ |
| platformType | island platforms ⓘ |
| railLine | Caltrain main line NERFINISHED ⓘ |
| region | San Francisco Peninsula NERFINISHED ⓘ |
| servedBy | Caltrain NERFINISHED ⓘ |
| serves |
Bay Area travelers
ⓘ
Peninsula commuters ⓘ San Mateo, California NERFINISHED ⓘ |
| structureType | at-grade ⓘ |
| supportsFareSystem | Clipper card GENERATED ⓘ |
| timeZone | Pacific Time Zone ⓘ |
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: San Mateo Caltrain Station Description of subject: San Mateo Caltrain Station is a commuter rail station in San Mateo, California that serves as a key transit hub for Peninsula and Bay Area travelers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.