Triple

T10896393
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 40 E257319 entity
Predicate regionOfOperation P794 FINISHED
Object London Midland Region E400047 NE FINISHED

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 Midland Region | Statement: [British Rail Class 40, regionOfOperation, London Midland Region]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: London Midland Region
Context triple: [British Rail Class 40, regionOfOperation, London Midland Region]
  • A. London Midland Region chosen
    The London Midland Region was a major administrative division of British Railways responsible for rail services across central and north-western England and parts of Scotland after nationalisation in 1948.
  • B. London Midland
    London Midland was a former British train operating company that ran regional and intercity passenger services across the West Midlands and surrounding areas until its franchise ended in 2017.
  • C. 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.
  • D. London and South East rail region
    The London and South East rail region is a major railway operating area in the United Kingdom that covers London and its surrounding southeastern counties, coordinating passenger and freight rail services across this densely populated corridor.
  • E. West Midlands Railway
    West Midlands Railway is a British train operating company providing regional and commuter rail services across the West Midlands and surrounding areas of England.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d6aa8550c8819095508a2ed9acf3db completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d75d022f4c81909cd9ea27a9f0cd32 completed April 9, 2026, 8:02 a.m.
NED1 Entity disambiguation (via context triple) batch_69e15519e620819090e492861de6a567 completed April 16, 2026, 9:31 p.m.
Created at: April 8, 2026, 9:21 p.m.