Triple

T4561646
Position Surface form Disambiguated ID Type / Status
Subject USRA Light Mikado 2-8-2 locomotive design E121803 entity
Predicate category P87 FINISHED
Object USRA standard locomotives E121801 NE FINISHED

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 locomotives | Statement: [USRA Light Mikado 2-8-2 locomotive design, category, USRA standard locomotives]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: USRA standard locomotives
Context triple: [USRA Light Mikado 2-8-2 locomotive design, category, USRA standard locomotives]
  • 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. USRA standard freight car designs
    USRA standard freight car designs were a series of standardized freight car types created during World War I to simplify and unify railroad equipment across U.S. railroads.
  • C. USRA Light Mikado 2-8-2 locomotive design
    The USRA Light Mikado 2-8-2 locomotive design was a widely adopted standard World War I–era American steam freight locomotive, known for its balanced power, efficiency, and influence on subsequent 2-8-2 designs.
  • D. ACS-64 locomotives
    ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
  • E. Amtrak locomotives
    Amtrak locomotives are the diesel and electric engines that power the United States’ national passenger rail services across both short- and long-distance routes.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69bd463f156881908a99aca69c5721ac completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd582f21648190b49284eb61b618c9 completed March 20, 2026, 2:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdc59b2514819091f3845307cb1c8b completed March 20, 2026, 10:09 p.m.
Created at: March 20, 2026, 1:09 p.m.