Triple

T21088002
Position Surface form Disambiguated ID Type / Status
Subject Walnut–Locust station E519553 entity
Predicate isOnCorridor P1018 FINISHED
Object Broad Street Subway — NE NERFINISHED

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: Broad Street Subway | Statement: [Walnut–Locust station, isOnCorridor, Broad Street Subway]

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: Broad Street Subway
Context triple: [Walnut–Locust station, isOnCorridor, Broad Street Subway]
  • A. Broad Street Subway chosen
    The Broad Street Subway is a major rapid transit line in Philadelphia that runs primarily along Broad Street, serving as a key north–south backbone of the city’s public transportation system.
  • B. Queens Quay streetcar line
    The Queens Quay streetcar line is a Toronto streetcar route that runs along the city’s central waterfront, serving key destinations and attractions on Queens Quay.
  • C. Spadina streetcar line
    The Spadina streetcar line is a major Toronto Transit Commission route running along Spadina Avenue, connecting key downtown destinations including the University of Toronto’s St. George campus.
  • D. Waterloo & City line
    The Waterloo & City line is a short, deep-level London Underground railway line that provides a direct commuter link between Waterloo station and the City of London.
  • E. Yonge Street subway corridor
    The Yonge Street subway corridor is a major rapid transit route in Toronto that follows Yonge Street and forms the backbone of the city’s subway network.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b507dd9081908fb8bfcbef4c8b46 elicitation completed
NER batch_69e7094cebe08190bb10f51a45c244ec ner completed
Created at: April 16, 2026, 2:50 p.m.