Triple

T16470813
Position Surface form Disambiguated ID Type / Status
Subject British Railways London Midland Region E400053 entity
Predicate operatedLocomotiveClass P67417 FINISHED
Object LMS Stanier Class 5 4-6-0 (Black Five) E256294 NE FINISHED

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: LMS Stanier Class 5 4-6-0 (Black Five) | Statement: [British Railways London Midland Region, operatedLocomotiveClass, LMS Stanier Class 5 4-6-0 (Black Five)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: LMS Stanier Class 5 4-6-0 (Black Five)
Context triple: [British Railways London Midland Region, operatedLocomotiveClass, LMS Stanier Class 5 4-6-0 (Black Five)]
  • A. LMS Stanier Class 5 4-6-0 "Black Five" locomotives chosen
    The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
  • B. BR Standard Class 5
    The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
  • C. British Rail Class 56
    The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.
  • D. BR Standard Class 4 steam locomotives
    BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
  • E. LMS Royal Scot Class
    The LMS Royal Scot Class was a class of British 4-6-0 steam locomotives built for the London, Midland and Scottish Railway, renowned for hauling express passenger services on the West Coast Main Line.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: operatedLocomotiveClass
Context triple: [British Railways London Midland Region, operatedLocomotiveClass, LMS Stanier Class 5 4-6-0 (Black Five)]
  • A. typicalLocomotiveClass
    Indicates that one locomotive class is the standard or most commonly used class for a given context, operator, or service.
  • B. operatedRollingStockClass chosen
    Indicates that an entity (such as a company or operator) has operated a specific class or type of rolling stock (e.g., trains or rail vehicles).
  • C. primaryLocomotiveType
    Indicates the main method or mechanism by which an entity typically moves or travels.
  • D. laterLocomotiveType
    Indicates that one locomotive type succeeds or comes after another in time, representing a later development or version in locomotive design.
  • E. hasLocomotive
    Indicates that one entity possesses or is equipped with a locomotive as part of its composition or operation.
  • F. None of above.

Provenance (4 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_69d87f2dac988190b74d6e185fa88ba4 completed April 10, 2026, 4:40 a.m.
NER Named-entity recognition batch_69e32dd0d2fc81909b68b5afb00f192f completed April 18, 2026, 7:08 a.m.
NED1 Entity disambiguation (via context triple) batch_6a00581c24508190b4888357828fed80 completed May 10, 2026, 10:04 a.m.
PD Predicate disambiguation batch_69e22706b0588190a48a951c5211a617 completed April 17, 2026, 12:26 p.m.
Created at: April 10, 2026, 5:11 a.m.