Triple

T1685020
Position Surface form Disambiguated ID Type / Status
Subject BMT Jamaica Line E36422 entity
Predicate usesRollingStockType P1305 FINISHED
Object B Division subway cars
B Division subway cars are the wider, longer New York City Subway rolling stock used on lettered lines, designed for higher-capacity service on the B Division routes.
E190126 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: B Division subway cars | Statement: [BMT Jamaica Line, usesRollingStockType, B Division subway cars]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: B Division subway cars
Context triple: [BMT Jamaica Line, usesRollingStockType, B Division subway cars]
  • A. IRT A Division subway cars
    IRT A Division subway cars are the narrower, smaller-profile New York City Subway vehicles designed to operate on the numbered lines of the system.
  • B. R46 subway cars
    The R46 subway cars are a class of New York City Subway rolling stock built in the 1970s, known for their stainless-steel bodies and long service on various IND/BMT lines.
  • C. R143 subway cars
    The R143 subway cars are a class of New York City Subway rolling stock built in the early 2000s, primarily used on the BMT Canarsie Line and known for introducing modern features like electronic signage and automated announcements.
  • D. R160 subway cars
    The R160 subway cars are a class of modern New Technology Train rolling stock used on various New York City Subway lines, featuring electronic signage, automated announcements, and improved accessibility and reliability compared to older fleets.
  • E. R68 subway car
    The R68 subway car is a stainless-steel New York City Subway rolling stock class built in the 1980s, primarily used on B Division lines such as the B train.
  • 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: B Division subway cars
Triple: [BMT Jamaica Line, usesRollingStockType, B Division subway cars]
Generated description
B Division subway cars are the wider, longer New York City Subway rolling stock used on lettered lines, designed for higher-capacity service on the B Division routes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: B Division subway cars
Target entity description: B Division subway cars are the wider, longer New York City Subway rolling stock used on lettered lines, designed for higher-capacity service on the B Division routes.
  • A. IRT A Division subway cars
    IRT A Division subway cars are the narrower, smaller-profile New York City Subway vehicles designed to operate on the numbered lines of the system.
  • B. R46 subway cars
    The R46 subway cars are a class of New York City Subway rolling stock built in the 1970s, known for their stainless-steel bodies and long service on various IND/BMT lines.
  • C. R143 subway cars
    The R143 subway cars are a class of New York City Subway rolling stock built in the early 2000s, primarily used on the BMT Canarsie Line and known for introducing modern features like electronic signage and automated announcements.
  • D. R160 subway cars
    The R160 subway cars are a class of modern New Technology Train rolling stock used on various New York City Subway lines, featuring electronic signage, automated announcements, and improved accessibility and reliability compared to older fleets.
  • E. R68 subway car
    The R68 subway car is a stainless-steel New York City Subway rolling stock class built in the 1980s, primarily used on B Division lines such as the B train.
  • 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_69a886151508819084fa7f1ce6e05577 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69aa627da0688190bfb5316079bc589a completed March 6, 2026, 5:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad71c1b4308190b04fed7ce752b67c completed March 8, 2026, 12:55 p.m.
NEDg Description generation batch_69ad724651e08190a77519ad21c64b23 completed March 8, 2026, 12:57 p.m.
NED2 Entity disambiguation (via description) batch_69ad72c405b081909bff8bf621e9baec completed March 8, 2026, 12:59 p.m.
Created at: March 4, 2026, 7:29 p.m.