Triple

T281049
Position Surface form Disambiguated ID Type / Status
Subject J E5354 entity
Predicate trunkLine P6301 FINISHED
Object BMT Jamaica Line
The BMT Jamaica Line is an elevated New York City Subway line in Brooklyn and Queens, primarily served by the J and Z trains.
E36422 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 Jamaica Line | Statement: [J, trunkLine, BMT Jamaica Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: BMT Jamaica Line
Context triple: [J, trunkLine, BMT Jamaica Line]
  • A. Staten Island Railway
    Staten Island Railway is a rapid transit line providing passenger rail service along Staten Island’s east shore in New York City.
  • B. Interborough Rapid Transit Company
    The Interborough Rapid Transit Company was the private operator that built and ran New York City's first subway lines in the early 20th century before they were incorporated into the modern NYC Subway system.
  • C. Camden Line
    The Camden Line is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and surrounding communities as part of the MARC Train system.
  • D. Tompkins Consolidated Area Transit
    Tompkins Consolidated Area Transit is the primary public bus system serving Ithaca and the surrounding Tompkins County region in New York.
  • E. 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.
  • 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 Jamaica Line
Triple: [J, trunkLine, BMT Jamaica Line]
Generated description
The BMT Jamaica Line is an elevated New York City Subway line in Brooklyn and Queens, primarily served by the J and Z trains.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: BMT Jamaica Line
Target entity description: The BMT Jamaica Line is an elevated New York City Subway line in Brooklyn and Queens, primarily served by the J and Z trains.
  • A. Staten Island Railway
    Staten Island Railway is a rapid transit line providing passenger rail service along Staten Island’s east shore in New York City.
  • B. Interborough Rapid Transit Company
    The Interborough Rapid Transit Company was the private operator that built and ran New York City's first subway lines in the early 20th century before they were incorporated into the modern NYC Subway system.
  • C. Camden Line
    The Camden Line is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and surrounding communities as part of the MARC Train system.
  • D. Tompkins Consolidated Area Transit
    Tompkins Consolidated Area Transit is the primary public bus system serving Ithaca and the surrounding Tompkins County region in New York.
  • E. 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.
  • 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_69a257e6c8788190987dfe705ca2912a completed Feb. 28, 2026, 2:50 a.m.
NER Named-entity recognition batch_69a260d0dae48190a2ec98d0186fd792 completed Feb. 28, 2026, 3:28 a.m.
NED1 Entity disambiguation (via context triple) batch_69a394a407588190a1f52821fe3b5fc7 completed March 1, 2026, 1:21 a.m.
NEDg Description generation batch_69a395524c248190ba42ae1de870a598 completed March 1, 2026, 1:24 a.m.
NED2 Entity disambiguation (via description) batch_69a395d7fc408190a1eb0fea0d0b2838 completed March 1, 2026, 1:26 a.m.
Created at: Feb. 28, 2026, 2:59 a.m.