Triple

T18520781
Position Surface form Disambiguated ID Type / Status
Subject USRA 0-6-0 switcher E452575 entity
Predicate belongsTo P35 FINISHED
Object USRA standard locomotive family NE NERFINISHED

How this triple was built (2 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: USRA standard locomotive family | Statement: [USRA 0-6-0 switcher, belongsTo, USRA standard locomotive family]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: USRA standard locomotive family
Context triple: [USRA 0-6-0 switcher, belongsTo, USRA standard locomotive family]
  • A. USRA standard steam locomotive designs chosen
    USRA standard steam locomotive designs were a series of standardized steam locomotive types created during World War I to simplify and unify locomotive production and maintenance across U.S. railroads.
  • B. MPXpress locomotive family
    The MPXpress locomotive family is a series of modern, diesel-electric passenger locomotives widely used by North American commuter rail agencies for their reliability, power, and compliance with contemporary emissions and safety standards.
  • C. ALP family of locomotives
    The ALP family of locomotives is a series of modern electric and dual-mode passenger locomotives used primarily in North American commuter rail service.
  • D. USRA 0-8-0 switcher
    The USRA 0-8-0 switcher was a standardized heavy steam switching locomotive widely used in North American rail yards during the early 20th century.
  • E. USRA 2-6-6-2 articulated locomotive
    The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69d8d386df84819092355ebb260d848e completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e5338db5e4819086503a2176dfe499 completed April 19, 2026, 7:57 p.m.
Created at: April 10, 2026, 11:37 a.m.