Amtrak Capitol Corridor
E13501
Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
All labels observed (12)
How this entity was disambiguated
This entity first appeared as the object of triple T76660 — 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: Amtrak Capitol Corridor Context triple: [Caltrain, connectsWith, Amtrak Capitol Corridor]
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A.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
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B.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
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C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
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D.
Amtrak Sacramento Valley Station
Amtrak Sacramento Valley Station is the main intercity passenger rail station in Sacramento, California, serving Amtrak trains and regional transit connections.
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E.
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.
- 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: Amtrak Capitol Corridor Target entity description: Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
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A.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
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B.
Caltrain
Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
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C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
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D.
Amtrak Sacramento Valley Station
Amtrak Sacramento Valley Station is the main intercity passenger rail station in Sacramento, California, serving Amtrak trains and regional transit connections.
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E.
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.
- F. None of above. chosen
Statements (50)
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: Amtrak Capitol Corridor Description of subject: Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
Referenced by (50)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Amtrak Capitol Corridor (nearby stations)
this entity surface form:
Capitol Corridor
this entity surface form:
Amtrak Capitol Corridor (partly via shared approaches and connections)
subject surface form:
Richmond, California
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor route between San Jose and Sacramento
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor route
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor (Amtrak)
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor rail line
this entity surface form:
Capitol Corridor
subject surface form:
SolanoExpress
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor line
this entity surface form:
Capitol Corridor
this entity surface form:
Oakland–San Jose segment of Capitol Corridor
this entity surface form:
Oakland–Sacramento segment of Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor intercity passenger rail service
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor
this entity surface form:
Capitol Corridor route