Caltrain at Millbrae station
E627700
Caltrain at Millbrae station is a commuter rail service stop in Millbrae, California, providing regional rail connections along the San Francisco Peninsula and linking with local transit systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Caltrain at Millbrae station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6896512 — 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 at Millbrae station Context triple: [BART Antioch–SFO+Millbrae line, connectsTo, Caltrain at Millbrae station]
-
A.
Caltrain stations
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.
-
B.
Muni Metro at Embarcadero Station
Muni Metro at Embarcadero Station is a major San Francisco light rail hub located in the Financial District, serving multiple Muni Metro lines and connecting to regional transit services.
-
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.
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.
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E.
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.
- 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 at Millbrae station Target entity description: Caltrain at Millbrae station is a commuter rail service stop in Millbrae, California, providing regional rail connections along the San Francisco Peninsula and linking with local transit systems.
-
A.
Caltrain stations
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.
-
B.
Muni Metro at Embarcadero Station
Muni Metro at Embarcadero Station is a major San Francisco light rail hub located in the Financial District, serving multiple Muni Metro lines and connecting to regional transit services.
-
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.
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.
-
E.
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.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf | commuter rail station ⓘ |
| access |
bicycle access
ⓘ
park-and-ride access ⓘ pedestrian access ⓘ |
| adjacentTo |
Millbrae BART station
ⓘ
linked to:
Millbrae station
|
| category |
Caltrain stations in California
ⓘ
Railway stations in San Mateo County, California ⓘ |
| connectsTo |
SamTrans bus services
ⓘ
local shuttles in Millbrae area ⓘ local transit systems in Millbrae and surrounding areas ⓘ regional rail services along the San Francisco Peninsula ⓘ |
| country | United States of America ⓘ |
| fareSystem | Caltrain fare zones ⓘ |
| function | commuter rail stop ⓘ |
| hasMode | heavy rail ⓘ |
| locatedIn |
Millbrae, California
ⓘ
linked to:
Millbrae
San Francisco Peninsula ⓘ San Mateo County, California ⓘ |
| operator | Caltrain ⓘ |
| owner | Peninsula Corridor Joint Powers Board ⓘ |
| partOf |
Caltrain commuter rail network
ⓘ
linked to:
Caltrain
|
| platformType | high-level platforms ⓘ |
| railLine |
Caltrain main line
ⓘ
linked to:
San Francisco–San Jose rail corridor
|
| role | regional rail connection point on the San Francisco Peninsula ⓘ |
| servedBy | Caltrain ⓘ |
| serves |
Millbrae, California residents and visitors
ⓘ
commuters on the San Francisco Peninsula ⓘ |
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 at Millbrae station Description of subject: Caltrain at Millbrae station is a commuter rail service stop in Millbrae, California, providing regional rail connections along the San Francisco Peninsula and linking with local transit systems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.