Triple

T9285899
Position Surface form Disambiguated ID Type / Status
Subject Transbay Transit Center E223393 entity
Predicate futureServes P87398 FINISHED
Object Caltrain E1530 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 | Statement: [Transbay Transit Center, futureServes, Caltrain]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Caltrain
Context triple: [Transbay Transit Center, futureServes, Caltrain]
  • A. Caltrain chosen
    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.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. BART Antioch–SFO+Millbrae line
    The BART Antioch–SFO+Millbrae line is a Bay Area Rapid Transit service that runs between Antioch in the East Bay and San Francisco International Airport and Millbrae, connecting suburban communities with major regional transit hubs.
  • 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: futureServes
Context triple: [Transbay Transit Center, futureServes, Caltrain]
  • A. futureComponentOf
    Indicates that one entity is expected or planned to become a component or part of another entity at some point in the future.
  • B. futureSiteOf
    Indicates that a location is planned or designated to become the site of a particular entity or structure in the future.
  • C. laterFeature
    Indicates that one feature, event, or element occurs or is introduced after another in time.
  • D. mayServe
    Indicates that one entity is permitted or authorized to provide a service or function to another entity.
  • E. servedUntil
    Indicates the ending time or date up to which an entity held a position, role, or service.
  • F. None of above. chosen

Provenance (5 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_69ca8422ddf881908a3f8f876c9f53aa completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd0821b1108190b16e9570b09a14de completed April 1, 2026, 11:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0b21d8f1081909b2493151fde4a5f completed April 4, 2026, 6:39 a.m.
PD Predicate disambiguation batch_69cc7a576ec88190bbb787eb82e2e539 completed April 1, 2026, 1:52 a.m.
PDg Predicate description generation batch_69cc94b796788190816b71b1e9996288 completed April 1, 2026, 3:44 a.m.
Created at: March 30, 2026, 7:35 p.m.