Triple

T10986322
Position Surface form Disambiguated ID Type / Status
Subject MacArthur BART station E259638 entity
Predicate lineServed P6301 FINISHED
Object Berryessa/North San José–Richmond line E91128 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Berryessa/North San José–Richmond line | Statement: [MacArthur BART station, lineServed, Berryessa/North San José–Richmond line]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Berryessa/North San José–Richmond line
Context triple: [MacArthur BART station, lineServed, Berryessa/North San José–Richmond line]
  • A. Berryessa/North San José–Richmond line chosen
    The Berryessa/North San José–Richmond line is a Bay Area Rapid Transit (BART) service route connecting San José’s Berryessa/North San José station with the city of Richmond in the San Francisco Bay Area.
  • B. 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.
  • C. 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.
  • D. Atherton line
    The Atherton line is a suburban railway route in Greater Manchester, England, connecting Manchester with towns such as Swinton, Walkden, and Atherton.
  • E. BART Berryessa/North San José–Daly City line
    The BART Berryessa/North San José–Daly City line is a Bay Area Rapid Transit service connecting San José’s Berryessa/North San José station with Daly City through downtown San Francisco and the East Bay.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d6aa895f4c8190887a15460ef622f4 elicitation completed
NER batch_69d787b2e4a88190a81504eee77e2298 ner completed
NED1 batch_69e344e9c66c81909163cea6aa9276e0 ned_source_triple completed
Created at: April 8, 2026, 9:24 p.m.