San Francisco–San Jose rail corridor
E814326
The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Caltrain main line | 9 |
| San Francisco–San Jose rail corridor canonical | 2 |
| Caltrain corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9642988 — 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.
Target entity: San Francisco–San Jose rail corridor Context triple: [San Mateo station, isOnCorridor, San Francisco–San Jose rail corridor]
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A.
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.
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B.
Los Angeles–San Diego rail corridor
The Los Angeles–San Diego rail corridor is a major Southern California passenger and freight rail route running along the coast between the Los Angeles and San Diego metropolitan areas.
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C.
Los Angeles–Seattle rail corridor
The Los Angeles–Seattle rail corridor is a major long-distance passenger rail route in the western United States, connecting Southern California with the Pacific Northwest along the coast.
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D.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
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E.
Sonoma–Marin Area Rail Transit
Sonoma–Marin Area Rail Transit is a commuter rail system in California’s North Bay that provides passenger service along the Highway 101 corridor in Sonoma and Marin counties.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: San Francisco–San Jose rail corridor Target entity description: The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
-
A.
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.
-
B.
Los Angeles–San Diego rail corridor
The Los Angeles–San Diego rail corridor is a major Southern California passenger and freight rail route running along the coast between the Los Angeles and San Diego metropolitan areas.
-
C.
Los Angeles–Seattle rail corridor
The Los Angeles–Seattle rail corridor is a major long-distance passenger rail route in the western United States, connecting Southern California with the Pacific Northwest along the coast.
-
D.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
-
E.
Sonoma–Marin Area Rail Transit
Sonoma–Marin Area Rail Transit is a commuter rail system in California’s North Bay that provides passenger service along the Highway 101 corridor in Sonoma and Marin counties.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
intercity rail line ⓘ rail corridor ⓘ |
| connects |
San Francisco
ⓘ
San Jose ⓘ |
| electrificationProject |
Caltrain Modernization Program
ⓘ
linked to:
Caltrain
|
| follows |
San Francisco Peninsula urban corridor
ⓘ
linked to:
San Francisco–San Jose corridor
|
| hasInfrastructureType |
at-grade segments
ⓘ
bridges ⓘ grade crossings ⓘ tunnels ⓘ |
| hasMajorStation |
Millbrae station
ⓘ
Mountain View station ⓘ Palo Alto station ⓘ Redwood City station ⓘ
linked to:
Redwood City Station
San Francisco 4th and King Street station ⓘ San Jose Diridon station ⓘ |
| hasMode | heavy rail ⓘ |
| hasOwner | Peninsula Corridor Joint Powers Board ⓘ |
| hasPrimaryFunction | linking San Francisco and Silicon Valley ⓘ |
| hasServicePattern | all-day bi-directional service ⓘ |
| hasTrackConfiguration | double track (most segments) ⓘ |
| historicallyUsedBy | Southern Pacific Railroad ⓘ |
| intersectsWith |
Bay Area Rapid Transit network (via transfer points)
ⓘ
linked to:
Bay Area Rapid Transit rail network
|
| isKeyComponentOf |
Bay Area regional transportation network
ⓘ
linked to:
San Francisco Bay Area transit network
|
| locatedIn |
California
ⓘ
linked to:
California, United States
San Francisco Peninsula ⓘ United States ⓘ
linked to:
United States of America
|
| partOf |
Caltrain system
ⓘ
linked to:
Caltrain
|
| passesThrough |
San Mateo County
ⓘ
linked to:
San Mateo County, California
Santa Clara County ⓘ |
| plannedToBeUsedBy | Caltrain electric multiple units ⓘ |
| primaryOperator | Caltrain ⓘ |
| servedBy |
Caltrain express services
ⓘ
linked to:
Caltrain
Caltrain limited-stop services ⓘ Caltrain local services ⓘ |
| serves |
commuters
ⓘ
intercity passengers ⓘ |
| supports |
bicycle-carrying trains (via Caltrain policies)
ⓘ
off-peak service ⓘ peak-hour commuter service ⓘ |
| terminusA | San Francisco ⓘ |
| terminusB | San Jose ⓘ |
| usedBy | Caltrain diesel locomotive-hauled trains ⓘ |
| usedFor |
daily commuting
ⓘ
regional travel ⓘ |
| uses | standard gauge track ⓘ |
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.
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.
Subject: San Francisco–San Jose rail corridor Description of subject: The San Francisco–San Jose rail corridor is a major commuter and intercity rail line on the San Francisco Peninsula that connects San Francisco and San Jose, primarily served by Caltrain.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.