Triple

T11724292
Position Surface form Disambiguated ID Type / Status
Subject Brooklyn–Manhattan Transit Corporation E278718 entity
Predicate operatedLine P848 FINISHED
Object BMT Lexington Avenue elevated
The BMT Lexington Avenue elevated was a former elevated rapid transit line in Brooklyn, New York City, that operated as part of the Brooklyn–Manhattan Transit system before being demolished.
E942971 NE FINISHED

How this triple was built (4 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: BMT Lexington Avenue elevated | Statement: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Lexington Avenue elevated]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: BMT Lexington Avenue elevated
Context triple: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Lexington Avenue elevated]
  • A. BMT Broadway Line at Lexington Avenue–63rd Street
    The BMT Broadway Line at Lexington Avenue–63rd Street is a New York City Subway station complex in Manhattan that serves as a key transfer point between the Broadway Line services and the Second Avenue Subway.
  • B. BMT Brighton Line at Coney Island–Stillwell Avenue
    BMT Brighton Line at Coney Island–Stillwell Avenue is a New York City Subway terminal complex in Brooklyn where the Brighton Line and several other lines converge at the large Coney Island–Stillwell Avenue station.
  • C. New York City Subway at Lexington Avenue–59th Street
    The New York City Subway at Lexington Avenue–59th Street is a major Manhattan transfer complex where multiple subway lines intersect, providing key access to Midtown destinations including the Central Park South area.
  • D. BMT Fourth Avenue Line
    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.
  • E. BMT Franklin Avenue Line
    The BMT Franklin Avenue Line is a short New York City Subway shuttle route in Brooklyn that connects the Fulton Street Line with the Brighton Line.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: BMT Lexington Avenue elevated
Triple: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Lexington Avenue elevated]
Generated description
The BMT Lexington Avenue elevated was a former elevated rapid transit line in Brooklyn, New York City, that operated as part of the Brooklyn–Manhattan Transit system before being demolished.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: BMT Lexington Avenue elevated
Target entity description: The BMT Lexington Avenue elevated was a former elevated rapid transit line in Brooklyn, New York City, that operated as part of the Brooklyn–Manhattan Transit system before being demolished.
  • A. BMT Broadway Line at Lexington Avenue–63rd Street
    The BMT Broadway Line at Lexington Avenue–63rd Street is a New York City Subway station complex in Manhattan that serves as a key transfer point between the Broadway Line services and the Second Avenue Subway.
  • B. BMT Brighton Line at Coney Island–Stillwell Avenue
    BMT Brighton Line at Coney Island–Stillwell Avenue is a New York City Subway terminal complex in Brooklyn where the Brighton Line and several other lines converge at the large Coney Island–Stillwell Avenue station.
  • C. New York City Subway at Lexington Avenue–59th Street
    The New York City Subway at Lexington Avenue–59th Street is a major Manhattan transfer complex where multiple subway lines intersect, providing key access to Midtown destinations including the Central Park South area.
  • D. BMT Fourth Avenue Line
    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.
  • E. BMT Franklin Avenue Line
    The BMT Franklin Avenue Line is a short New York City Subway shuttle route in Brooklyn that connects the Fulton Street Line with the Brighton Line.
  • F. None of above. chosen

Provenance (5 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_69d8a4d603cc8190b2e68d0bdd793362 completed April 10, 2026, 7:20 a.m.
NED1 Entity disambiguation (via context triple) batch_69ef83d9fe70819089b9f3585188f96c completed April 27, 2026, 3:42 p.m.
NEDg Description generation batch_69ef96b13be881908102ffa867f96c22 completed April 27, 2026, 5:02 p.m.
NED2 Entity disambiguation (via description) batch_69efb51113708190998b570c33b9d0e7 completed April 27, 2026, 7:12 p.m.
Created at: April 8, 2026, 9:41 p.m.