Triple

T5814016
Position Surface form Disambiguated ID Type / Status
Subject Brooklyn Rapid Transit Company E128938 entity
Predicate operatedLine P848 FINISHED
Object Fulton Street Elevated
The Fulton Street Elevated was an elevated railway line in Brooklyn, New York City, that provided rapid transit service along Fulton Street before being largely replaced by the 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: Fulton Street Elevated | Statement: [Brooklyn Rapid Transit Company, operatedLine, Fulton Street Elevated]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fulton Street Elevated
Context triple: [Brooklyn Rapid Transit Company, operatedLine, Fulton Street Elevated]
  • A. Metropolitan West Side Elevated Railroad
    The Metropolitan West Side Elevated Railroad was an early elevated transit line in Chicago that formed part of the city’s first rapid transit system on the West Side.
  • 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. Washington Street Elevated
    Washington Street Elevated was a former elevated rapid transit line in Boston that once carried Orange Line trains along Washington Street through several neighborhoods.
  • 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. Fulton Street Line
    The Fulton Street Line is a major New York City Subway corridor in Brooklyn and Manhattan that carries IND services such as the A and C trains along Fulton Street.
  • 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: Fulton Street Elevated
Triple: [Brooklyn Rapid Transit Company, operatedLine, Fulton Street Elevated]
Generated description
The Fulton Street Elevated was an elevated railway line in Brooklyn, New York City, that provided rapid transit service along Fulton Street before being largely replaced by the subway system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Fulton Street Elevated
Target entity description: The Fulton Street Elevated was an elevated railway line in Brooklyn, New York City, that provided rapid transit service along Fulton Street before being largely replaced by the subway system.
  • A. Metropolitan West Side Elevated Railroad
    The Metropolitan West Side Elevated Railroad was an early elevated transit line in Chicago that formed part of the city’s first rapid transit system on the West Side.
  • 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. Washington Street Elevated
    Washington Street Elevated was a former elevated rapid transit line in Boston that once carried Orange Line trains along Washington Street through several neighborhoods.
  • 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. Fulton Street Line
    The Fulton Street Line is a major New York City Subway corridor in Brooklyn and Manhattan that carries IND services such as the A and C trains along Fulton Street.
  • 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_69c0e35ad1a081908c908b6eef12d855 completed March 23, 2026, 6:53 a.m.
NEDg Description generation batch_69c0f1282148819086b9f1c24dcb0a46 completed March 23, 2026, 7:52 a.m.
NED2 Entity disambiguation (via description) batch_69c0f1a171c481909a897f342b6d6329 completed March 23, 2026, 7:54 a.m.
Created at: March 22, 2026, 3:52 p.m.