Triple

T20537606
Position Surface form Disambiguated ID Type / Status
Subject Southern Pacific GS-3 E504239 entity
Predicate designedBy P184 FINISHED
Object Southern Pacific mechanical department — 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: Southern Pacific mechanical department | Statement: [Southern Pacific GS-3, designedBy, Southern Pacific mechanical department]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Southern Pacific mechanical department
Context triple: [Southern Pacific GS-3, designedBy, Southern Pacific mechanical department]
  • A. Southern Pacific Railroad Mechanical Department chosen
    The Southern Pacific Railroad Mechanical Department was the in-house engineering and design division of the Southern Pacific Railroad responsible for developing and refining the company’s locomotives and rolling stock.
  • B. 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.
  • C. Southern Pacific GS-3
    The Southern Pacific GS-3 was a class of streamlined 4-8-4 "Northern" type steam locomotives built in the late 1930s for high-speed passenger service on the Southern Pacific Railroad.
  • D. Southern Pacific GS-4
    The Southern Pacific GS-4 is a class of streamlined 4-8-4 "Northern" steam locomotives built in the 1940s for the Southern Pacific Railroad, renowned for their distinctive orange and red "Daylight" livery and high-speed passenger service.
  • E. Central Pacific Railroad No. 173
    Central Pacific Railroad No. 173 was a 19th-century steam locomotive whose design and appearance helped inspire the look of Disneyland’s C.K. Holliday engine.
  • 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_69e0b4b476648190bc6019622ae54d3c completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e6a28f2f1081908f656d790ff182ff completed April 20, 2026, 10:02 p.m.
Created at: April 16, 2026, 11:37 a.m.