Triple

T6448634
Position Surface form Disambiguated ID Type / Status
Subject New Haven Line E139806 entity
Predicate usesRollingStock P5426 FINISHED
Object M4 railcar
The M4 railcar is an electric multiple-unit passenger train used in commuter rail service, notably on lines such as the New Haven Line.
 E597589 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: M4 railcar | Statement: [New Haven Line, usesRollingStock, M4 railcar]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: M4 railcar
Context triple: [New Haven Line, usesRollingStock, M4 railcar]
  • A. M2 railcar
    The M2 railcar is an electric multiple-unit passenger train used by commuter rail services in the northeastern United States, particularly known for operating on the New Haven Line.
  • B. Endeavour railcar
    The Endeavour railcar is a class of diesel multiple unit passenger trains operating regional and intercity services in New South Wales, Australia.
  • C. M3 electric multiple unit
    The M3 electric multiple unit is a class of electric commuter rail cars used by the Long Island Rail Road for high-capacity passenger service in the New York metropolitan area.
  • D. M7 electric multiple unit
    The M7 electric multiple unit is a modern commuter rail car class built for high-frequency, third-rail electrified service, notably operating on New York’s Long Island Rail Road and similar regional rail networks.
  • E. M9 electric multiple unit
    The M9 electric multiple unit is a modern commuter rail train used by the Long Island Rail Road, designed to replace older fleets with improved performance, safety, and passenger amenities.
  • 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: M4 railcar
Triple: [New Haven Line, usesRollingStock, M4 railcar]
Generated description
The M4 railcar is an electric multiple-unit passenger train used in commuter rail service, notably on lines such as the New Haven Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: M4 railcar
Target entity description: The M4 railcar is an electric multiple-unit passenger train used in commuter rail service, notably on lines such as the New Haven Line.
  • A. M2 railcar
    The M2 railcar is an electric multiple-unit passenger train used by commuter rail services in the northeastern United States, particularly known for operating on the New Haven Line.
  • B. Endeavour railcar
    The Endeavour railcar is a class of diesel multiple unit passenger trains operating regional and intercity services in New South Wales, Australia.
  • C. M3 electric multiple unit
    The M3 electric multiple unit is a class of electric commuter rail cars used by the Long Island Rail Road for high-capacity passenger service in the New York metropolitan area.
  • D. M7 electric multiple unit
    The M7 electric multiple unit is a modern commuter rail car class built for high-frequency, third-rail electrified service, notably operating on New York’s Long Island Rail Road and similar regional rail networks.
  • E. M9 electric multiple unit
    The M9 electric multiple unit is a modern commuter rail train used by the Long Island Rail Road, designed to replace older fleets with improved performance, safety, and passenger amenities.
  • 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_69c008b301948190a35854e5284dc822 completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c069b1a61c81908610264c098d25b0 completed March 22, 2026, 10:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69c65fcb6974819094759e4b7903049b completed March 27, 2026, 10:45 a.m.
NEDg Description generation batch_69c6614ee0e881909a0d47f127e531a6 completed March 27, 2026, 10:51 a.m.
NED2 Entity disambiguation (via description) batch_69c661a9faf08190b13eec6cc4372b7f completed March 27, 2026, 10:53 a.m.
Created at: March 22, 2026, 4:47 p.m.