Triple

T21951552
Position Surface form Disambiguated ID Type / Status
Subject Metro-Cammell E542081 entity
Predicate notableWork P4 FINISHED
Object British Rail Class 315 — NE NERFINISHED

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: British Rail Class 315 | Statement: [Metro-Cammell, notableWork, British Rail Class 315]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 315
Context triple: [Metro-Cammell, notableWork, British Rail Class 315]
  • A. British Rail Class 319
    The British Rail Class 319 is a dual-voltage electric multiple unit train introduced in the late 1980s for cross-London services, notably on the Thameslink route.
  • B. British Rail Class 317
    The British Rail Class 317 is a type of electric multiple unit train introduced in the early 1980s for commuter services in and around London and the East of England.
  • C. British Rail Class 313
    The British Rail Class 313 is a type of dual-voltage electric multiple unit train introduced in the 1970s for suburban and commuter services in the United Kingdom.
  • D. British Rail Class 314
    The British Rail Class 314 is a type of electric multiple unit train built in the late 1970s for suburban commuter services around Glasgow, Scotland.
  • E. British Rail Class 325
    The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: British Rail Class 315
Target entity description: The British Rail Class 315 is a type of electric multiple unit train built in the late 1970s and early 1980s for suburban commuter services in and around London.
  • A. British Rail Class 319
    The British Rail Class 319 is a dual-voltage electric multiple unit train introduced in the late 1980s for cross-London services, notably on the Thameslink route.
  • B. British Rail Class 317
    The British Rail Class 317 is a type of electric multiple unit train introduced in the early 1980s for commuter services in and around London and the East of England.
  • C. British Rail Class 313
    The British Rail Class 313 is a type of dual-voltage electric multiple unit train introduced in the 1970s for suburban and commuter services in the United Kingdom.
  • D. British Rail Class 314
    The British Rail Class 314 is a type of electric multiple unit train built in the late 1970s for suburban commuter services around Glasgow, Scotland.
  • E. British Rail Class 325
    The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
  • F. None of above. chosen

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_69e0c47ef0e48190a50e1bcc43f4b3fd completed April 16, 2026, 11:14 a.m.
NER Named-entity recognition batch_69f1243c84d4819097f5a93b128f024b completed April 28, 2026, 9:18 p.m.
Created at: April 16, 2026, 7:58 p.m.