Triple

T5814013
Position Surface form Disambiguated ID Type / Status
Subject Brooklyn Rapid Transit Company E128938 entity
Predicate operatedLine P848 FINISHED
Object Broadway Elevated (Brooklyn)
Broadway Elevated (Brooklyn) was an elevated rapid transit line in Brooklyn, New York City, that formed part of the early 20th-century urban rail network later integrated into the New York City Subway system.
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: Broadway Elevated (Brooklyn) | Statement: [Brooklyn Rapid Transit Company, operatedLine, Broadway Elevated (Brooklyn)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Broadway Elevated (Brooklyn)
Context triple: [Brooklyn Rapid Transit Company, operatedLine, Broadway Elevated (Brooklyn)]
  • A. 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.
  • B. Manhattan Bridge (B train)
    The Manhattan Bridge (B train) is a major New York City Subway crossing that carries B and D line trains between Brooklyn and Manhattan as part of the BMT Broadway and IND Sixth Avenue services.
  • C. Broadway (Astoria Line)
    Broadway is a local New York City Subway station in Astoria, Queens, served by the N and W trains on the BMT Astoria Line.
  • D. Second Avenue–Broadway Express
    The Second Avenue–Broadway Express is a New York City Subway service pattern that operates express via Second Avenue in Manhattan and Broadway in Brooklyn, providing faster travel between the Upper East Side and southern Brooklyn.
  • E. Broad Street (BMT Nassau Street Line)
    Broad Street is a New York City Subway station in Lower Manhattan serving the BMT Nassau Street Line, primarily used by J and Z trains.
  • 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: Broadway Elevated (Brooklyn)
Triple: [Brooklyn Rapid Transit Company, operatedLine, Broadway Elevated (Brooklyn)]
Generated description
Broadway Elevated (Brooklyn) was an elevated rapid transit line in Brooklyn, New York City, that formed part of the early 20th-century urban rail network later integrated into the New York City Subway system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Broadway Elevated (Brooklyn)
Target entity description: Broadway Elevated (Brooklyn) was an elevated rapid transit line in Brooklyn, New York City, that formed part of the early 20th-century urban rail network later integrated into the New York City Subway system.
  • A. 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.
  • B. Manhattan Bridge (B train)
    The Manhattan Bridge (B train) is a major New York City Subway crossing that carries B and D line trains between Brooklyn and Manhattan as part of the BMT Broadway and IND Sixth Avenue services.
  • C. Broadway (Astoria Line)
    Broadway is a local New York City Subway station in Astoria, Queens, served by the N and W trains on the BMT Astoria Line.
  • D. Second Avenue–Broadway Express
    The Second Avenue–Broadway Express is a New York City Subway service pattern that operates express via Second Avenue in Manhattan and Broadway in Brooklyn, providing faster travel between the Upper East Side and southern Brooklyn.
  • E. Broad Street (BMT Nassau Street Line)
    Broad Street is a New York City Subway station in Lower Manhattan serving the BMT Nassau Street Line, primarily used by J and Z trains.
  • 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_69c0084788848190bcf71f6bc5d71597 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c03361c79081908baf872821e79983 completed March 22, 2026, 6:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69c09848dd148190aeea1b1d454b8da5 completed March 23, 2026, 1:32 a.m.
NEDg Description generation batch_69c098bbc9248190820ca3e66026ae4b completed March 23, 2026, 1:34 a.m.
NED2 Entity disambiguation (via description) batch_69c09943deec819085992c4e44050a34 completed March 23, 2026, 1:37 a.m.
Created at: March 22, 2026, 3:52 p.m.