Triple

T8356369
Position Surface form Disambiguated ID Type / Status
Subject Los Angeles County government E196689 entity
Predicate transportationAgency P13327 FINISHED
Object Los Angeles County Metropolitan Transportation Authority E2263 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: Los Angeles County Metropolitan Transportation Authority | Statement: [Los Angeles County government, transportationAgency, Los Angeles County Metropolitan Transportation Authority]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Los Angeles County Metropolitan Transportation Authority
Context triple: [Los Angeles County government, transportationAgency, Los Angeles County Metropolitan Transportation Authority]
  • A. Los Angeles County Metropolitan Transportation Authority chosen
    The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
  • B. Los Angeles Department of Transportation
    The Los Angeles Department of Transportation is the city agency responsible for managing and regulating transportation systems, traffic operations, and mobility services within Los Angeles.
  • C. Alameda Corridor Transportation Authority
    The Alameda Corridor Transportation Authority is a public agency that developed and manages the Alameda Corridor freight rail expressway linking the Ports of Los Angeles and Long Beach to the national rail network.
  • D. Santa Barbara Metropolitan Transit District
    The Santa Barbara Metropolitan Transit District is the primary public bus agency serving Santa Barbara and surrounding communities in California’s South Coast region.
  • E. Santa Clara Valley Transportation Authority
    The Santa Clara Valley Transportation Authority is the public transit agency that operates bus, light rail, and related transportation services throughout Santa Clara County in California’s Silicon Valley.
  • 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: transportationAgency
Context triple: [Los Angeles County government, transportationAgency, Los Angeles County Metropolitan Transportation Authority]
  • A. hasPublicTransportAgency
    Indicates that a place or transport system is served, managed, or overseen by a specific public transportation agency.
  • B. transportationFacility
    Indicates that one entity is a facility or location used for the transportation or transit of people or goods in relation to another entity.
  • C. coordinatesTransportationServicesWith
    Indicates that one entity organizes and manages the alignment and collaboration of transportation services with another entity or set of entities.
  • D. transportationServedBy
    Indicates that a transportation facility, route, or area is provided service or coverage by a specific transportation provider or mode.
  • E. publicTransportAuthority chosen
    Indicates that one entity serves as the governing or managing authority responsible for overseeing public transportation services related 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_69ca82f08b348190bfb7881944bbff6f completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb804a344c819089c0a13fe66e3088 completed March 31, 2026, 8:05 a.m.
NED1 Entity disambiguation (via context triple) batch_69cdc765e5c4819096b5f9129ee416a0 completed April 2, 2026, 1:33 a.m.
PD Predicate disambiguation batch_69cb70ca25548190b0f90c5384e3fb3c completed March 31, 2026, 6:59 a.m.
Created at: March 30, 2026, 5:59 p.m.