Triple

T22350374
Position Surface form Disambiguated ID Type / Status
Subject 25th Street E552510 entity
Predicate lineGrouping P32740 FINISHED
Object BMT Fourth Avenue Line local tracks — 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: BMT Fourth Avenue Line local tracks | Statement: [25th Street, lineGrouping, BMT Fourth Avenue Line local tracks]

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: BMT Fourth Avenue Line local tracks
Context triple: [25th Street, lineGrouping, BMT Fourth Avenue Line local tracks]
  • A. BMT 2 (Fourth Avenue Local)
    BMT 2 (Fourth Avenue Local) was a former Brooklyn–Manhattan Transit Corporation subway service that operated local trains along Brooklyn’s Fourth Avenue Line in New York City.
  • B. BMT Fourth Avenue Line chosen
    The BMT Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn, running beneath Fourth Avenue and serving as a key corridor for multiple services.
  • C. BMT Culver Line (elevated portion)
    The BMT Culver Line (elevated portion) was an elevated rapid transit line in Brooklyn that formed part of New York City’s early 20th-century subway system.
  • D. Brooklyn–Manhattan Transit (BMT) lines
    The Brooklyn–Manhattan Transit (BMT) lines were a major division of New York City's early subway system, originally operated by the BMT company and now forming part of the modern B Division of the NYC Subway.
  • E. New York City Subway Line 4
    The New York City Subway Line 4 is a rapid transit service running along the Lexington Avenue Line in Manhattan and into the Bronx, known for its express service through much of its route.
  • 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_69e11e4a0ad08190a385b4d343cf6524 elicitation completed
NER batch_69f1579ad6708190ba4af97a02d0758d ner completed
Created at: April 16, 2026, 8:43 p.m.