Amtrak in Silicon Valley
E574670
Amtrak in Silicon Valley refers to the intercity passenger rail services that connect the Silicon Valley region—centered around San Jose’s Diridon Station—to major destinations across California and beyond.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Amtrak in Silicon Valley canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6188909 — 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 in Silicon Valley Context triple: [Diridon Station, isMajorHubFor, Amtrak in Silicon Valley]
-
A.
California intercity passenger rail program
The California intercity passenger rail program is a statewide initiative that funds, coordinates, and oversees multiple state-supported intercity rail corridors to provide alternative, higher-capacity transportation options across California.
-
B.
BART Silicon Valley extension
The BART Silicon Valley extension is a major Bay Area Rapid Transit project extending rail service into Santa Clara County, including new stations in San José and surrounding areas.
-
C.
California High-Speed Rail
California High-Speed Rail is a planned statewide high-speed train system in California designed to connect major cities like San Francisco, Los Angeles, and San Diego with fast, electrified rail service.
-
D.
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.
-
E.
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.
- 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 in Silicon Valley Target entity description: Amtrak in Silicon Valley refers to the intercity passenger rail services that connect the Silicon Valley region—centered around San Jose’s Diridon Station—to major destinations across California and beyond.
-
A.
California intercity passenger rail program
The California intercity passenger rail program is a statewide initiative that funds, coordinates, and oversees multiple state-supported intercity rail corridors to provide alternative, higher-capacity transportation options across California.
-
B.
BART Silicon Valley extension
The BART Silicon Valley extension is a major Bay Area Rapid Transit project extending rail service into Santa Clara County, including new stations in San José and surrounding areas.
-
C.
California High-Speed Rail
California High-Speed Rail is a planned statewide high-speed train system in California designed to connect major cities like San Francisco, Los Angeles, and San Diego with fast, electrified rail service.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | intercity passenger rail service network ⓘ |
| connectsToCity |
Bakersfield, California
ⓘ
linked to:
Bakersfield
Emeryville, California ⓘ Los Angeles, California ⓘ Oakland, California ⓘ
linked to:
Oakland
Portland, Oregon ⓘ
linked to:
Portland
Sacramento, California ⓘ
linked to:
Sacramento
Salinas, California ⓘ
linked to:
Salinas
San Francisco, California ⓘ
linked to:
San Francisco
San Luis Obispo, California ⓘ
linked to:
San Luis Obispo
Seattle, Washington ⓘ
linked to:
Seattle, Washington, United States
|
| connectsToRegion |
Central Valley of California
ⓘ
linked to:
Central Valley
Pacific Northwest ⓘ San Francisco Bay Area ⓘ Southern California ⓘ |
| corridorService |
Amtrak Thruway Motorcoach
ⓘ
Capitol Corridor ⓘ
linked to:
Amtrak Capitol Corridor
Coast Starlight ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| fareSystem | Amtrak national fare system ⓘ |
| governingAgencyPartner |
Caltrans Division of Rail and Mass Transportation
ⓘ
linked to:
Caltrans
Capitol Corridor Joint Powers Authority ⓘ |
| hostRailroad | Union Pacific Railroad ⓘ |
| intermodalConnection |
Altamont Corridor Express via Diridon Station
ⓘ
linked to:
San Jose Diridon station
Bay Area Rapid Transit via bus connection ⓘ Caltrain ⓘ Santa Clara Valley Transportation Authority buses ⓘ Santa Clara Valley Transportation Authority light rail ⓘ
linked to:
Santa Clara Valley Transportation Authority
|
| locatedIn | Silicon Valley ⓘ |
| operator | Amtrak ⓘ |
| primaryHubStation |
San Jose Diridon Station
ⓘ
linked to:
San Jose Diridon station
|
| primaryPurpose |
long-distance travel
ⓘ
regional connectivity ⓘ |
| providesServiceType |
connecting bus service
ⓘ
intercity passenger rail ⓘ |
| railLineUsed |
Coast Subdivision
ⓘ
linked to:
UPRR Coast Subdivision
Peninsula Corridor ⓘ
linked to:
Peninsula rail corridor
|
| servesCity |
Gilroy, California
ⓘ
linked to:
Gilroy
San Jose, California ⓘ Santa Clara, California ⓘ
linked to:
Santa Clara
|
| servesRegion |
San Benito County, California
ⓘ
Santa Clara County, California ⓘ
linked to:
Santa Clara County
|
| ticketingMethod |
onboard purchase
ⓘ
online ticketing ⓘ station ticket machines ⓘ |
| usesStation |
Gilroy Station
ⓘ
linked to:
Gilroy station
San Jose Diridon Station ⓘ
linked to:
San Jose Diridon station
Santa Clara Station ⓘ |
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 in Silicon Valley Description of subject: Amtrak in Silicon Valley refers to the intercity passenger rail services that connect the Silicon Valley region—centered around San Jose’s Diridon Station—to major destinations across California and beyond.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.