Triple

T22143123
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 150 E547214 entity
Predicate operator P179 FINISHED
Object Regional Railways (sector of British Rail) — 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: Regional Railways (sector of British Rail) | Statement: [British Rail Class 150, operator, Regional Railways (sector of British Rail)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Regional Railways (sector of British Rail)
Context triple: [British Rail Class 150, operator, Regional Railways (sector of British Rail)]
  • A. British Rail Provincial sector chosen
    The British Rail Provincial sector was the division of British Rail responsible for operating most non-intercity and rural passenger train services across the United Kingdom before sectorisation reforms led to its rebranding as Regional Railways.
  • B. InterCity sector of British Rail
    The InterCity sector of British Rail was the business unit responsible for operating long-distance express passenger services across the British railway network from the 1960s until privatisation in the 1990s.
  • C. British Rail Railfreight sector
    The British Rail Railfreight sector was the freight division of British Rail responsible for managing and operating rail-based cargo services across the UK before rail privatization.
  • D. Southern Region of British Railways
    The Southern Region of British Railways was one of the post-nationalisation operating regions in the south of England, known for its dense commuter network and extensive electrified lines serving London and the surrounding areas.
  • E. British Rail Eastern Region
    British Rail Eastern Region was a major operating division of British Railways responsible for rail services across eastern England, inheriting much of the former London and North Eastern Railway 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_69e11e3a95d88190a3bd80d9471976c3 completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f129bf78108190b50d937917258693 completed April 28, 2026, 9:42 p.m.
Created at: April 16, 2026, 8:32 p.m.