Triple

T11737112
Position Surface form Disambiguated ID Type / Status
Subject Colma station E279057 entity
Predicate formerTerminusOf P28772 FINISHED
Object BART Pittsburg/Bay Point–SFO/Millbrae line E808890 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 Pittsburg/Bay Point–SFO/Millbrae line | Statement: [Colma station, formerTerminusOf, BART Pittsburg/Bay Point–SFO/Millbrae line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BART Pittsburg/Bay Point–SFO/Millbrae line
Context triple: [Colma station, formerTerminusOf, BART Pittsburg/Bay Point–SFO/Millbrae line]
  • 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 Richmond–Millbrae+SFO line
    The BART Richmond–Millbrae+SFO line is a Bay Area Rapid Transit route that runs from Richmond in the East Bay through Oakland and San Francisco to Millbrae and San Francisco International Airport.
  • C. 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.
  • D. BART Blue Line
    The BART Blue Line is a Bay Area Rapid Transit service route that runs through San Francisco and the greater Bay Area, connecting key urban centers and regional destinations.
  • E. BART Pittsburg/Bay Point line (historical) chosen
    The BART Pittsburg/Bay Point line (historical) was a former Bay Area Rapid Transit service route connecting San Francisco and Oakland to the eastern Contra Costa County suburbs, including Pittsburg and Bay Point.
  • 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_69d6aaffec6881908bead509e8621742 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a4ef1c4881909ad36dc27b1fe193 completed April 10, 2026, 7:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69f16679c0ec81909fe80d75dd582db1 completed April 29, 2026, 2:01 a.m.
Created at: April 8, 2026, 9:41 p.m.