Triple

T3890920
Position Surface form Disambiguated ID Type / Status
Subject Downtown Berkeley station E88058 entity
Predicate isOnCorridor P1018 FINISHED
Object Richmond–Oakland–San Francisco–Peninsula BART corridor E87165 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: Richmond–Oakland–San Francisco–Peninsula BART corridor | Statement: [Downtown Berkeley station, isOnCorridor, Richmond–Oakland–San Francisco–Peninsula BART corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Richmond–Oakland–San Francisco–Peninsula BART corridor
Context triple: [Downtown Berkeley station, isOnCorridor, Richmond–Oakland–San Francisco–Peninsula BART corridor]
  • A. 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.
  • B. 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.
  • C. BART Green Line
    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.
  • D. Richmond–Millbrae line chosen
    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.
  • E. Dublin/Pleasanton–Daly City line
    The Dublin/Pleasanton–Daly City line is a Bay Area Rapid Transit (BART) heavy rail service connecting the East Bay’s Tri-Valley area with San Francisco via a transbay route.
  • 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_69aed9466d548190939f5217a23ed4ac completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aeecb0ba448190aa076865b7762002 completed March 9, 2026, 3:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69b576852d0c819083d377bab6799ec7 completed March 14, 2026, 2:53 p.m.
Created at: March 9, 2026, 3:21 p.m.