Triple

T11724291
Position Surface form Disambiguated ID Type / Status
Subject Brooklyn–Manhattan Transit Corporation E278718 entity
Predicate operatedLine P848 FINISHED
Object BMT Fulton Street elevated
The BMT Fulton Street elevated was a former elevated rapid transit line in Brooklyn, New York City, that predated and was later largely replaced by the modern IND Fulton Street Subway.
E393799 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 Fulton Street elevated | Statement: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Fulton Street elevated]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: BMT Fulton Street elevated
Context triple: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Fulton Street elevated]
  • A. New York City Subway at Fulton Street
    The New York City Subway at Fulton Street is a major Lower Manhattan transit hub where multiple subway lines intersect, providing extensive connections across New York City.
  • B. Brooklyn Elevated Railroad
    The Brooklyn Elevated Railroad was a late 19th- and early 20th-century elevated railway company in Brooklyn, New York City, that operated several rapid transit lines before being absorbed into the city’s unified transit system.
  • C. Myrtle Avenue elevated in Downtown Brooklyn
    The Myrtle Avenue elevated in Downtown Brooklyn was a now-demolished elevated rapid transit line in Brooklyn, New York City, that once carried trains of the BMT system above Myrtle Avenue.
  • D. Fulton Street subway corridor
    The Fulton Street subway corridor is a major New York City Subway trunk line running through Lower Manhattan and into Brooklyn, serving as a key east–west transit artery for multiple lines and stations.
  • E. 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.
  • 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 Fulton Street elevated
Triple: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Fulton Street elevated]
Generated description
The BMT Fulton Street elevated was a former elevated rapid transit line in Brooklyn, New York City, that predated and was later largely replaced by the modern IND Fulton Street Subway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: BMT Fulton Street elevated
Target entity description: The BMT Fulton Street elevated was a former elevated rapid transit line in Brooklyn, New York City, that predated and was later largely replaced by the modern IND Fulton Street Subway.
  • A. New York City Subway at Fulton Street
    The New York City Subway at Fulton Street is a major Lower Manhattan transit hub where multiple subway lines intersect, providing extensive connections across New York City.
  • B. Brooklyn Elevated Railroad chosen
    The Brooklyn Elevated Railroad was a late 19th- and early 20th-century elevated railway company in Brooklyn, New York City, that operated several rapid transit lines before being absorbed into the city’s unified transit system.
  • C. Myrtle Avenue elevated in Downtown Brooklyn
    The Myrtle Avenue elevated in Downtown Brooklyn was a now-demolished elevated rapid transit line in Brooklyn, New York City, that once carried trains of the BMT system above Myrtle Avenue.
  • D. Fulton Street subway corridor
    The Fulton Street subway corridor is a major New York City Subway trunk line running through Lower Manhattan and into Brooklyn, serving as a key east–west transit artery for multiple lines and stations.
  • E. 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.
  • F. None of above.

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.