Triple

T3998933
Position Surface form Disambiguated ID Type / Status
Subject Oakland City Center/12th Street station E87164 entity
Predicate servesLine P839 FINISHED
Object BART Berryessa/North San José–Richmond line E407276 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: BART Berryessa/North San José–Richmond line | Statement: [Oakland City Center/12th Street station, servesLine, BART Berryessa/North San José–Richmond line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BART Berryessa/North San José–Richmond line
Context triple: [Oakland City Center/12th Street station, servesLine, BART Berryessa/North San José–Richmond line]
  • A. BART Fremont line
    The BART Fremont line is a Bay Area Rapid Transit route in the San Francisco Bay Area that historically extended service to the city of Fremont in southern Alameda County.
  • B. 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.
  • C. BART Orange Line
    The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
  • D. BART Green Line chosen
    The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
  • E. Richmond–Millbrae line
    The Richmond–Millbrae line is a Bay Area Rapid Transit (BART) service route in the San Francisco Bay Area that connects Richmond in the East Bay with Millbrae near San Francisco International Airport.
  • 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_69aed94118148190975e6aa4e554cde9 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aefa4065ac8190a898a1025365b8e9 completed March 9, 2026, 4:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5f59af660819083785bda45935ae4 completed March 14, 2026, 11:56 p.m.
Created at: March 9, 2026, 3:34 p.m.