Triple

T20316183
Position Surface form Disambiguated ID Type / Status
Subject BR Derby Works E510384 entity
Predicate designed P184 FINISHED
Object British Rail Class 121 DMU — NE NERFINISHED

How this triple was built (3 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 Rail Class 121 DMU | Statement: [BR Derby Works, designed, British Rail Class 121 DMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 121 DMU
Context triple: [BR Derby Works, designed, British Rail Class 121 DMU]
  • A. British Rail Class 120 DMU
    The British Rail Class 120 DMU was a class of cross-country diesel multiple units introduced in the late 1950s for long-distance services on British Rail’s Western and Scottish Regions.
  • B. British Rail Class 117 DMU
    The British Rail Class 117 DMU is a type of first-generation diesel multiple unit built for suburban and regional passenger services on British Rail from the late 1950s.
  • C. British Rail Class 116 DMU
    The British Rail Class 116 DMU is a type of first-generation diesel multiple unit built for suburban and commuter services on the British railway network in the late 1950s and 1960s.
  • D. British Rail Class 118 DMU
    The British Rail Class 118 DMU was a type of first-generation diesel multiple unit built for suburban and regional passenger services on British Rail in the mid-20th century.
  • E. British Rail Class 119 DMU
    The British Rail Class 119 DMU was a type of diesel multiple unit built in the late 1950s for suburban and cross-country passenger services on the Western Region of British Railways.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 121 DMU
Target entity description: The British Rail Class 121 DMU is a type of single-car diesel multiple unit introduced in the late 1950s for suburban and branch line services on the British railway network.
  • A. British Rail Class 120 DMU
    The British Rail Class 120 DMU was a class of cross-country diesel multiple units introduced in the late 1950s for long-distance services on British Rail’s Western and Scottish Regions.
  • B. British Rail Class 117 DMU
    The British Rail Class 117 DMU is a type of first-generation diesel multiple unit built for suburban and regional passenger services on British Rail from the late 1950s.
  • C. British Rail Class 116 DMU
    The British Rail Class 116 DMU is a type of first-generation diesel multiple unit built for suburban and commuter services on the British railway network in the late 1950s and 1960s.
  • D. British Rail Class 118 DMU
    The British Rail Class 118 DMU was a type of first-generation diesel multiple unit built for suburban and regional passenger services on British Rail in the mid-20th century.
  • E. British Rail Class 119 DMU
    The British Rail Class 119 DMU was a type of diesel multiple unit built in the late 1950s for suburban and cross-country passenger services on the Western Region of British Railways.
  • F. None of above. chosen

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_69e0b4c7491c8190961113c4283b10b0 completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e67787af188190bc32a3049c9c5b39 completed April 20, 2026, 6:59 p.m.
Created at: April 16, 2026, 11:19 a.m.