Triple

T4181087
Position Surface form Disambiguated ID Type / Status
Subject Metrolink at Union Station E88195 entity
Predicate owner P347 FINISHED
Object Los Angeles County Metropolitan Transportation Authority E2263 NE FINISHED

How this triple was built (2 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: [Metrolink at Union Station, owner, 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: [Metrolink at Union Station, owner, 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. 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.
  • D. 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.
  • E. Orange County Transportation Authority
    The Orange County Transportation Authority is the public agency responsible for planning, funding, and operating Orange County, California’s bus, rail, and freeway transportation systems.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69aed9477e8c81908bcb862d2db55b1d completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af0304702c8190899cbb0e3e41b987 completed March 9, 2026, 5:27 p.m.
NED1 Entity disambiguation (via context triple) batch_69b589f89f4481909f95d3ca915bac18 completed March 14, 2026, 4:16 p.m.
Created at: March 9, 2026, 3:45 p.m.