Triple

T20316176
Position Surface form Disambiguated ID Type / Status
Subject BR Derby Works E510384 entity
Predicate designed P184 FINISHED
Object British Rail Class 108 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 108 DMU | Statement: [BR Derby Works, designed, British Rail Class 108 DMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 108 DMU
Context triple: [BR Derby Works, designed, British Rail Class 108 DMU]
  • A. British Rail Class 166
    The British Rail Class 166 is a diesel multiple-unit train used primarily for regional and commuter services in the UK, known for its higher speed and comfort compared to earlier local units.
  • B. British Rail Class 153
    The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
  • C. British Rail Class 168
    The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
  • D. British Rail Class 143
    The British Rail Class 143 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK.
  • E. British Rail Class 171
    The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
  • 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 108 DMU
Target entity description: The British Rail Class 108 DMU is a type of first-generation diesel multiple unit built for British Rail in the late 1950s and widely used on regional and suburban passenger services across the UK.
  • A. British Rail Class 166
    The British Rail Class 166 is a diesel multiple-unit train used primarily for regional and commuter services in the UK, known for its higher speed and comfort compared to earlier local units.
  • B. British Rail Class 153
    The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
  • C. British Rail Class 168
    The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
  • D. British Rail Class 143
    The British Rail Class 143 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK.
  • E. British Rail Class 171
    The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
  • 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.