Triple

T21568703
Position Surface form Disambiguated ID Type / Status
Subject North West Trains E532227 entity
Predicate operatedRollingStockClass P67417 FINISHED
Object British Rail Class 142 — 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 Rail Class 142 | Statement: [North West Trains, operatedRollingStockClass, British Rail Class 142]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 142
Context triple: [North West Trains, operatedRollingStockClass, British Rail Class 142]
  • A. British Rail Class 142 chosen
    The British Rail Class 142 is a type of diesel multiple unit "Pacer" train built in the 1980s for use on regional and commuter rail services in the UK, known for its bus-derived body design and basic ride quality.
  • B. 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.
  • C. 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.
  • D. British Rail Class 121
    The British Rail Class 121 is a type of single-car diesel multiple unit railcar introduced in the 1960s for use on lightly used branch lines and suburban services in the UK.
  • E. British Rail Class 156
    The British Rail Class 156 is a diesel multiple-unit passenger train built in the late 1980s for regional and local services across the UK rail network.
  • 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_69e0c460db088190828c64206a450273 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69eee9cad95c8190ab165ced6f242302 completed April 27, 2026, 4:44 a.m.
Created at: April 16, 2026, 6:30 p.m.