Triple

T1022847
Position Surface form Disambiguated ID Type / Status
Subject United States Railroad Administration E22076 entity
Predicate notableOutput P1448 FINISHED
Object USRA Heavy Pacific 4-6-2 locomotive design 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 Heavy Pacific 4-6-2 locomotive design | Statement: [United States Railroad Administration, notableOutput, USRA Heavy Pacific 4-6-2 locomotive design]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: USRA Heavy Pacific 4-6-2 locomotive design
Context triple: [United States Railroad Administration, notableOutput, USRA Heavy Pacific 4-6-2 locomotive design]
  • A. 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.
  • B. 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.
  • C. Atchison Topeka and Santa Fe 4-8-4 locomotive
    The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
  • D. Southern Pacific Cab Forward locomotive
    The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
  • E. Pullman-Standard
    Pullman-Standard was a major American railcar manufacturer known for producing a wide range of passenger and freight cars throughout the 20th century.
  • 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_69a493d6e380819097b384986ffc315c completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b7e0f8908190bfe0a4cd8b31dfed completed March 1, 2026, 10:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac5381e020819094e02c3d20acab95 completed March 7, 2026, 4:34 p.m.
Created at: March 1, 2026, 7:41 p.m.