Triple

T5646567
Position Surface form Disambiguated ID Type / Status
Subject McKim Building E124397 entity
Predicate publicTransitAccess P1288 FINISHED
Object Copley station (MBTA Green Line) E53386 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: Copley station (MBTA Green Line) | Statement: [McKim Building, publicTransitAccess, Copley station (MBTA Green 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: Copley station (MBTA Green Line)
Context triple: [McKim Building, publicTransitAccess, Copley station (MBTA Green Line)]
  • A. Chestnut Hill station (MBTA Green Line D)
    Chestnut Hill station is a light rail stop on Boston’s MBTA Green Line D branch serving the Chestnut Hill neighborhood with access to nearby residential and commercial areas.
  • B. Porter Square MBTA Red Line station
    Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
  • C. Massachusetts Avenue station
    Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
  • D. Park Street MBTA station
    Park Street MBTA station is a major downtown Boston subway hub on the MBTA’s Green and Red Lines, located at the eastern edge of Boston Common.
  • E. Copley station chosen
    Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
  • 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_69c00825df388190a58742fa9b1aa33d elicitation completed
NER batch_69c022abf0108190b10b3a9fe1688bf9 ner completed
NED1 batch_69c04d88bbf08190b32d1ad157e28fe4 ned_source_triple completed
Created at: March 22, 2026, 3:41 p.m.