Triple

T1140382
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 170 E23435 entity
Predicate operator P179 FINISHED
Object London Midland (former) E129443 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 (former) | Statement: [British Rail Class 170, operator, London Midland (former)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: London Midland (former)
Context triple: [British Rail Class 170, operator, London Midland (former)]
  • A. London Midland chosen
    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.
  • B. London and North Eastern Railway
    London and North Eastern Railway was a major British railway company formed in 1923, known for operating key routes in eastern and northeastern England and for famous express trains like the Flying Scotsman and Mallard.
  • C. London, Midland and Scottish Railway
    The London, Midland and Scottish Railway was a major British railway company formed in 1923 that operated an extensive network across England, Scotland, and Wales until nationalisation in 1948.
  • D. 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.
  • E. London North Eastern Railway
    London North Eastern Railway is a British train operating company that runs long-distance passenger services on the East Coast Main Line between London and destinations in northern England and Scotland.
  • 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_69a493ef399c8190b04b9146d2314f59 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4bc290ae08190afbf7e7ea2100d9e completed March 1, 2026, 10:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac6677c7e48190ba8da088b78775a5 completed March 7, 2026, 5:55 p.m.
Created at: March 1, 2026, 7:44 p.m.