Triple

T21831133
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 90 E538996 entity
Predicate predecessor P97 FINISHED
Object British Rail Class 87 — 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 87 | Statement: [British Rail Class 90, predecessor, British Rail Class 87]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 87
Context triple: [British Rail Class 90, predecessor, British Rail Class 87]
  • A. British Rail Class 87 chosen
    The British Rail Class 87 is a high-powered electric locomotive built in the early 1970s for express passenger services on the West Coast Main Line in the UK.
  • B. British Rail Class 86
    The British Rail Class 86 is a class of electric locomotives introduced in the 1960s for high-speed passenger and freight services on the West Coast Main Line and other electrified routes in the UK.
  • C. British Rail Class 67
    The British Rail Class 67 is a high-speed diesel-electric locomotive built by Alstom in the late 1990s for passenger and mail services on the UK rail network.
  • D. British Rail Class 378
    The British Rail Class 378 is a type of electric multiple unit train designed for high-capacity, metro-style commuter services on London Overground routes.
  • E. British Rail Class 66
    The British Rail Class 66 is a widely used diesel-electric freight locomotive type in the UK and parts of Europe, known for its reliability and dominance in modern rail freight operations.
  • 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_69e0c475cda88190987d08f23caebdc1 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69f091362d9081909f00ad7a2806d5cb completed April 28, 2026, 10:51 a.m.
Created at: April 16, 2026, 6:55 p.m.