SJC (Amtrak)
E142396
SJC (Amtrak) is the Amtrak station code for San Jose Diridon, a major passenger rail hub in San Jose, California.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SJC (Amtrak) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1059156 — 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: SJC (Amtrak) Context triple: [San Jose Diridon station, hasStationCode, SJC (Amtrak)]
-
A.
Amtrak Ethan Allen Express
The Amtrak Ethan Allen Express is an intercity passenger train service that operates between New York City and Vermont, providing a key rail connection through the Hudson Valley and upstate New York.
-
B.
Amtrak Northeast Regional
Amtrak Northeast Regional is a passenger rail service that provides frequent intercity connections between major cities in the northeastern United States, including Boston, New York, Philadelphia, and Washington, D.C.
-
C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
D.
Amtrak Lake Shore Limited
Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
-
E.
Amtrak Vermonter
Amtrak Vermonter is a daily intercity passenger train operated by Amtrak that runs between Washington, D.C., and St. Albans, Vermont, serving major cities along the Northeast Corridor and into northern New England.
- 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: SJC (Amtrak) Target entity description: SJC (Amtrak) is the Amtrak station code for San Jose Diridon, a major passenger rail hub in San Jose, California.
-
A.
Amtrak Ethan Allen Express
The Amtrak Ethan Allen Express is an intercity passenger train service that operates between New York City and Vermont, providing a key rail connection through the Hudson Valley and upstate New York.
-
B.
Amtrak Northeast Regional
Amtrak Northeast Regional is a passenger rail service that provides frequent intercity connections between major cities in the northeastern United States, including Boston, New York, Philadelphia, and Washington, D.C.
-
C.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
D.
Amtrak Lake Shore Limited
Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
-
E.
Amtrak Vermonter
Amtrak Vermonter is a daily intercity passenger train operated by Amtrak that runs between Washington, D.C., and St. Albans, Vermont, serving major cities along the Northeast Corridor and into northern New England.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf | Amtrak station code ⓘ |
| appliesToRailStation | San Jose Diridon ⓘ |
| associatedWithRailLine |
Amtrak Thruway Motorcoach
ⓘ
Amtrak Capitol Corridor ⓘ
surface form:
Capitol Corridor
Coast Starlight ⓘ |
| associatedWithRailOperator |
San Jose Diridon station
ⓘ
surface form:
Altamont Corridor Express (ACE) (at San Jose Diridon)
San Jose Diridon station ⓘ
surface form:
Caltrain (at San Jose Diridon)
|
| associatedWithTransitMode |
commuter rail (via co-located services)
ⓘ
intercity rail ⓘ |
| codeType | Amtrak station code ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| differentFrom | SJC (IATA airport code) ⓘ |
| hasAbbreviationFor |
San Jose Diridon station
ⓘ
surface form:
San Jose, California (Amtrak context)
|
| hasDisambiguationNote | Not to be confused with Norman Y. Mineta San Jose International Airport (IATA: SJC) ⓘ |
| hasLanguage | English ⓘ |
| identifies |
San Jose Diridon station
ⓘ
surface form:
San Jose Diridon station building
San Jose Diridon station ⓘ
surface form:
San Jose Diridon station platforms
|
| locatedIn |
San Jose
ⓘ
surface form:
San Jose, California
Santa Clara County ⓘ
surface form:
Santa Clara County, California
|
| locatedInTimeZone | Pacific Time Zone ⓘ |
| namingConvention | three-letter alphabetic code ⓘ |
| operator | Amtrak ⓘ |
| partOfSystem | Amtrak station code system ⓘ |
| primaryUsage | identifying San Jose Diridon in Amtrak systems ⓘ |
| railStationType | intercity rail hub ⓘ |
| refersTo | San Jose Diridon station ⓘ |
| servesCity |
San Jose
ⓘ
surface form:
San Jose, California
|
| servesRegion |
San Francisco Bay Area
ⓘ
Silicon Valley ⓘ |
| usedBy |
Amtrak customer service
ⓘ
Amtrak scheduling systems ⓘ Amtrak ticketing systems ⓘ rail passengers traveling to San Jose Diridon ⓘ |
| usedFor |
Amtrak reservations
ⓘ
passenger rail ticketing ⓘ |
| usedOn |
Amtrak mobile app
ⓘ
Amtrak route maps ⓘ Amtrak tickets ⓘ Amtrak timetables ⓘ Amtrak website ⓘ |
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: SJC (Amtrak) Description of subject: SJC (Amtrak) is the Amtrak station code for San Jose Diridon, a major passenger rail hub in San Jose, California.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.