Triple

T6331785
Position Surface form Disambiguated ID Type / Status
Subject SJC (Amtrak) E142396 entity
Predicate associatedWithRailOperator P20222 FINISHED
Object Caltrain (at San Jose Diridon) E22865 NE FINISHED

How this triple was built (3 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Caltrain (at San Jose Diridon) | Statement: [SJC (Amtrak), associatedWithRailOperator, Caltrain (at San Jose Diridon)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Caltrain (at San Jose Diridon)
Context triple: [SJC (Amtrak), associatedWithRailOperator, Caltrain (at San Jose Diridon)]
  • A. San Carlos Caltrain station
    San Carlos Caltrain station is a commuter rail station on the Caltrain line serving the city of San Carlos in San Mateo County, California.
  • B. 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.
  • C. San Francisco (Caltrain)
    San Francisco (Caltrain) is the northern terminus and major commuter rail station of the Caltrain line serving the San Francisco Bay Area.
  • D. 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.
  • E. San Jose Diridon station chosen
    San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: associatedWithRailOperator
Context triple: [SJC (Amtrak), associatedWithRailOperator, Caltrain (at San Jose Diridon)]
  • A. hasRailOperatorNamedAfter
    Indicates that a rail operator is named after the specified entity.
  • B. hasLocalRailOperator
    Indicates that a specified rail operator is responsible for providing local or regional rail services within a particular area or network.
  • C. trainOperator chosen
    Indicates that one entity operates, manages, or runs train services for another entity or within a specific rail system.
  • D. associatedWithLocomotive
    Indicates a relationship where something is connected or related to a locomotive, such as by use, function, origin, or context.
  • E. railwayCompany
    Indicates that one entity is a railway company that owns, operates, or manages railway services or infrastructure in relation to another entity.
  • F. None of above.

Provenance (4 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69c008d4d8e88190ad301c05b08722ac completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c0651634b08190b54860ba0a70f5c4 completed March 22, 2026, 9:54 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6041f713c8190b27ba54181049377 completed March 27, 2026, 4:14 a.m.
PD Predicate disambiguation batch_69c060e7e2d48190af9d004236466788 completed March 22, 2026, 9:36 p.m.
Created at: March 22, 2026, 4:30 p.m.