Triple

T369670
Position Surface form Disambiguated ID Type / Status
Subject Line 2 Bloor–Danforth E8239 entity
Predicate hasRollingStock P1305 FINISHED
Object T1 subway train
The T1 subway train is a model of rapid transit vehicle used by the Toronto Transit Commission, primarily operating on the city’s Bloor–Danforth subway line.
E46849 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: T1 subway train | Statement: [Line 2 Bloor–Danforth, hasRollingStock, T1 subway train]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: T1 subway train
Context triple: [Line 2 Bloor–Danforth, hasRollingStock, T1 subway train]
  • A. L train
    The L train is a New York City Subway service that runs crosstown along 14th Street in Manhattan and through Williamsburg and Bushwick in Brooklyn, known for its heavy ridership and role as a key connector between the boroughs.
  • B. G train
    The G train is a New York City Subway service that runs entirely within Brooklyn and Queens, notably bypassing Manhattan.
  • C. E train
    The E train is a New York City Subway service that runs primarily along the IND Eighth Avenue Line, providing rapid transit between Queens and Manhattan.
  • D. J train
    The J train is a New York City Subway service that runs along the BMT Jamaica Line, connecting Jamaica, Queens with Lower Manhattan via Brooklyn.
  • E. N train
    The N train is a New York City Subway service that runs on the BMT Broadway Line in Manhattan and into Brooklyn, providing both local and express transit.
  • 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: T1 subway train
Triple: [Line 2 Bloor–Danforth, hasRollingStock, T1 subway train]
Generated description
The T1 subway train is a model of rapid transit vehicle used by the Toronto Transit Commission, primarily operating on the city’s Bloor–Danforth subway line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: T1 subway train
Target entity description: The T1 subway train is a model of rapid transit vehicle used by the Toronto Transit Commission, primarily operating on the city’s Bloor–Danforth subway line.
  • A. L train
    The L train is a New York City Subway service that runs crosstown along 14th Street in Manhattan and through Williamsburg and Bushwick in Brooklyn, known for its heavy ridership and role as a key connector between the boroughs.
  • B. G train
    The G train is a New York City Subway service that runs entirely within Brooklyn and Queens, notably bypassing Manhattan.
  • C. E train
    The E train is a New York City Subway service that runs primarily along the IND Eighth Avenue Line, providing rapid transit between Queens and Manhattan.
  • D. J train
    The J train is a New York City Subway service that runs along the BMT Jamaica Line, connecting Jamaica, Queens with Lower Manhattan via Brooklyn.
  • E. N train
    The N train is a New York City Subway service that runs on the BMT Broadway Line in Manhattan and into Brooklyn, providing both local and express transit.
  • 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_69a2e7f2ec648190b42bc7db424f8109 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2ebfdb0608190b1794a871d0d237a completed Feb. 28, 2026, 1:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3ecac7e048190a76c02c738599c61 completed March 1, 2026, 7:37 a.m.
NEDg Description generation batch_69a3ed24dd888190bc333e764c228250 completed March 1, 2026, 7:39 a.m.
NED2 Entity disambiguation (via description) batch_69a3eeb57a9481908fe2b62805495b15 completed March 1, 2026, 7:45 a.m.
Created at: Feb. 28, 2026, 1:08 p.m.