Triple

T4561521
Position Surface form Disambiguated ID Type / Status
Subject USRA standard steam locomotive designs E121801 entity
Predicate hasPart P35 FINISHED
Object USRA Light Santa Fe 2-10-2
The USRA Light Santa Fe 2-10-2 was a standardized heavy freight steam locomotive design developed under the United States Railroad Administration during World War I, featuring a 2-10-2 wheel arrangement optimized for slow, powerful hauling.
E452574 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: USRA Light Santa Fe 2-10-2 | Statement: [USRA standard steam locomotive designs, hasPart, USRA Light Santa Fe 2-10-2]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: USRA Light Santa Fe 2-10-2
Context triple: [USRA standard steam locomotive designs, hasPart, USRA Light Santa Fe 2-10-2]
  • 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. Union Pacific No. 119
    Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
  • 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. Union Pacific Challenger
    The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western United States.
  • 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: USRA Light Santa Fe 2-10-2
Triple: [USRA standard steam locomotive designs, hasPart, USRA Light Santa Fe 2-10-2]
Generated description
The USRA Light Santa Fe 2-10-2 was a standardized heavy freight steam locomotive design developed under the United States Railroad Administration during World War I, featuring a 2-10-2 wheel arrangement optimized for slow, powerful hauling.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: USRA Light Santa Fe 2-10-2
Target entity description: The USRA Light Santa Fe 2-10-2 was a standardized heavy freight steam locomotive design developed under the United States Railroad Administration during World War I, featuring a 2-10-2 wheel arrangement optimized for slow, powerful hauling.
  • 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. Union Pacific No. 119
    Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
  • 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. Union Pacific Challenger
    The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western United States.
  • 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_69bd463f156881908a99aca69c5721ac completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd582d98fc8190a760dbb5f20c775d completed March 20, 2026, 2:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdc59b2514819091f3845307cb1c8b completed March 20, 2026, 10:09 p.m.
NEDg Description generation batch_69bdc66a981c8190a472722af45ce023 completed March 20, 2026, 10:12 p.m.
NED2 Entity disambiguation (via description) batch_69bdc6de076081909d2ad276cc7a1141 completed March 20, 2026, 10:14 p.m.
Created at: March 20, 2026, 1:09 p.m.