Triple

T22749609
Position Surface form Disambiguated ID Type / Status
Subject Broadway Junction E562657 entity
Predicate connectsLineGroup P45024 FINISHED
Object Jamaica Line (BMT)
The Jamaica Line (BMT) is a New York City Subway elevated line in Brooklyn and Queens, primarily served by the J and Z trains and known for connecting Williamsburg and Jamaica via Broadway and Fulton Street.
 E1562893 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: Jamaica Line (BMT) | Statement: [Broadway Junction, connectsLineGroup, Jamaica Line (BMT)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Jamaica Line (BMT)
Context triple: [Broadway Junction, connectsLineGroup, Jamaica Line (BMT)]
  • A. Brighton Line (Brooklyn)
    The Brighton Line in Brooklyn is a New York City Subway route corridor in southern Brooklyn that carries B and Q trains between Coney Island and central Brooklyn, connecting to Manhattan via the Manhattan Bridge.
  • B. Marcy Avenue (BMT Jamaica Line)
    Marcy Avenue (BMT Jamaica Line) is a New York City Subway station in Williamsburg, Brooklyn, served by the J, M, and Z trains on the elevated BMT Jamaica Line.
  • C. IND Rockaway Line (subway portion)
    The IND Rockaway Line (subway portion) is a New York City Subway rapid transit line in Queens that connects central Queens to the Rockaway Peninsula as part of the IND Division.
  • D. Broadway Line (Brooklyn)
    The Broadway Line in Brooklyn is a New York City Subway corridor in Brooklyn that carries services such as the Second Avenue–Broadway Express and connects local neighborhoods to Manhattan-bound routes.
  • E. BMT Nassau Street Line
    The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
  • 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: Jamaica Line (BMT)
Triple: [Broadway Junction, connectsLineGroup, Jamaica Line (BMT)]
Generated description
The Jamaica Line (BMT) is a New York City Subway elevated line in Brooklyn and Queens, primarily served by the J and Z trains and known for connecting Williamsburg and Jamaica via Broadway and Fulton Street.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Jamaica Line (BMT)
Target entity description: The Jamaica Line (BMT) is a New York City Subway elevated line in Brooklyn and Queens, primarily served by the J and Z trains and known for connecting Williamsburg and Jamaica via Broadway and Fulton Street.
  • A. Brighton Line (Brooklyn)
    The Brighton Line in Brooklyn is a New York City Subway route corridor in southern Brooklyn that carries B and Q trains between Coney Island and central Brooklyn, connecting to Manhattan via the Manhattan Bridge.
  • B. Marcy Avenue (BMT Jamaica Line)
    Marcy Avenue (BMT Jamaica Line) is a New York City Subway station in Williamsburg, Brooklyn, served by the J, M, and Z trains on the elevated BMT Jamaica Line.
  • C. IND Rockaway Line (subway portion)
    The IND Rockaway Line (subway portion) is a New York City Subway rapid transit line in Queens that connects central Queens to the Rockaway Peninsula as part of the IND Division.
  • D. Broadway Line (Brooklyn)
    The Broadway Line in Brooklyn is a New York City Subway corridor in Brooklyn that carries services such as the Second Avenue–Broadway Express and connects local neighborhoods to Manhattan-bound routes.
  • E. BMT Nassau Street Line
    The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
  • 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_69e24551ec7881909a9c924dbea155f6 completed April 17, 2026, 2:36 p.m.
NER Named-entity recognition batch_69f179b822988190b5368ac1f4e1d70a completed April 29, 2026, 3:23 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0bca0266b08190976d6fda00720bd3 completed May 19, 2026, 2:25 a.m.
NEDg Description generation batch_6a0bcb094b60819090c7550dad826fac completed May 19, 2026, 2:29 a.m.
NED2 Entity disambiguation (via description) batch_6a0bcb7ccc4881909fe70749449c0e6c completed May 19, 2026, 2:31 a.m.
Created at: April 17, 2026, 3:24 p.m.