Triple

T21657121
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 86 E534495 entity
Predicate builder P3143 FINISHED
Object British Railways Doncaster 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: British Railways Doncaster Works | Statement: [British Rail Class 86, builder, British Railways Doncaster Works]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: British Railways Doncaster Works
Context triple: [British Rail Class 86, builder, British Railways Doncaster Works]
  • A. Doncaster Works chosen
    Doncaster Works is a historic British railway engineering and locomotive-building facility in Doncaster, England, long associated with the construction and maintenance of notable steam locomotives.
  • B. British Rail Engineering Limited
    British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
  • C. Bow railway works
    Bow railway works was a major 19th- and early 20th-century railway engineering and maintenance facility in Bow, East London, serving as an important hub for locomotive and rolling stock construction and repair.
  • D. Midland Railway Carriage and Wagon Works
    Midland Railway Carriage and Wagon Works was a prominent British railway rolling stock manufacturer based in Derby, known for producing carriages and wagons for the Midland Railway and other rail companies in the late 19th and early 20th centuries.
  • E. Railway Technical Centre
    The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
  • 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_69e0c467e1f48190af2650b19175abc4 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef5919c9c88190a2ddcf2cefee79a5 completed April 27, 2026, 12:39 p.m.
Created at: April 16, 2026, 6:36 p.m.