Triple

T22712649
Position Surface form Disambiguated ID Type / Status
Subject West Midlands Trains rolling stock E561641 entity
Predicate usedOnRoute P21808 FINISHED
Object London Northwestern Railway services 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: London Northwestern Railway services | Statement: [West Midlands Trains rolling stock, usedOnRoute, London Northwestern Railway services]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: London Northwestern Railway services
Context triple: [West Midlands Trains rolling stock, usedOnRoute, London Northwestern Railway services]
  • A. London Northwestern Railway chosen
    London Northwestern Railway is a British train operating company providing regional and commuter rail services across the West Midlands, North West England, and on routes to and from London.
  • B. North West Trains
    North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
  • C. Transport for London rail services
    Transport for London rail services comprise the network of urban rail operations in London, including the Underground, Overground, Docklands Light Railway, and other rail-based public transport managed by Transport for London.
  • D. TfL Rail services
    TfL Rail services were the interim commuter rail operations in London and the surrounding area that preceded and were later integrated into the full Elizabeth line network.
  • E. London North Western route
    The London North Western route was a key railway network in England operated by the London and North Western Railway, linking major industrial and commercial centers across the country.
  • 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_69e2454f1348819088d83f420925a5c1 completed April 17, 2026, 2:35 p.m.
NER Named-entity recognition batch_69f1790ab6208190a342f076002324ab completed April 29, 2026, 3:20 a.m.
Created at: April 17, 2026, 3:18 p.m.