Triple

T22595581
Position Surface form Disambiguated ID Type / Status
Subject Amtrak in Silicon Valley E574670 entity
Predicate intermodalConnection P112432 FINISHED
Object Caltrain NE NERFINISHED

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: [Amtrak in Silicon Valley, intermodalConnection, Caltrain]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Caltrain
Context triple: [Amtrak in Silicon Valley, intermodalConnection, 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: intermodalConnection
Context triple: [Amtrak in Silicon Valley, intermodalConnection, Caltrain]
  • A. freightConnections
    Indicates the existence or characteristics of transportation links used to move freight or cargo between locations or entities.
  • B. operatedFreightInterchangeWith
    Indicates that one entity operated a freight interchange service or facility jointly with another entity, enabling the transfer of freight between their respective operations.
  • C. railConnectionPurpose
    Indicates the intended function or goal of a particular rail connection between locations or networks.
  • D. hasRailInterchangeFunction chosen
    Indicates that something serves as a location or facility where rail lines connect or intersect, allowing passengers or goods to transfer between them.
  • E. servesAsCargoHubFor
    Indicates that one entity functions as a central location or facility for handling, consolidating, and distributing cargo associated with another entity.
  • F. None of above.

Provenance (3 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_69e245bc11308190b69d794d5d1e0bb6 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f16268cb54819084a0f27ec0473f35 completed April 29, 2026, 1:44 a.m.
PD Predicate disambiguation batch_69ee627be4248190889a88764624e174 completed April 26, 2026, 7:07 p.m.
Created at: April 17, 2026, 2:49 p.m.