Triple

T20205819
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific Big Boy class locomotives E493346 entity
Predicate builder P3143 FINISHED
Object ALCO Schenectady Works — 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: ALCO Schenectady Works | Statement: [Union Pacific Big Boy class locomotives, builder, ALCO Schenectady Works]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: ALCO Schenectady Works
Context triple: [Union Pacific Big Boy class locomotives, builder, ALCO Schenectady Works]
  • A. Schenectady Locomotive Works chosen
    Schenectady Locomotive Works was a prominent 19th-century American manufacturer of steam locomotives based in Schenectady, New York, that later became a key component of the American Locomotive Company (ALCO).
  • B. Lima Locomotive Works
    Lima Locomotive Works was a prominent American manufacturer best known for producing innovative steam locomotives, including the powerful "Super Power" designs that significantly advanced railroad performance in the early 20th century.
  • C. Locomotive Works
    Locomotive Works is the section of the Derby railway works dedicated to the construction, maintenance, and repair of railway locomotives.
  • D. Rogers Locomotive Works
    Rogers Locomotive Works was a prominent 19th-century American manufacturer of steam locomotives that became part of the American Locomotive Company through consolidation.
  • E. Baldwin Locomotive Works
    Baldwin Locomotive Works was a major American manufacturer of steam, diesel, and electric locomotives that played a central role in the development of railroad transportation in the 19th and early 20th centuries.
  • 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_69da6269614c8190bb40475d9d477358 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66d922ebc8190ae012da8ceba74dd completed April 20, 2026, 6:16 p.m.
Created at: April 11, 2026, 11:38 p.m.