Triple

T1066132
Position Surface form Disambiguated ID Type / Status
Subject London Euston – Birmingham E23213 entity
Predicate historicalOperator P2834 FINISHED
Object 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.
E129443 NE FINISHED

How this triple was built (4 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 | Statement: [London Euston – Birmingham, historicalOperator, London Midland]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: London Midland
Context triple: [London Euston – Birmingham, historicalOperator, London Midland]
  • A. 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.
  • 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. Great Western Railway
    Great Western Railway is a major British train operating company providing intercity and regional rail services across western and southern England and South Wales.
  • D. 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.
  • E. 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.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: London Midland
Triple: [London Euston – Birmingham, historicalOperator, London Midland]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: London Midland
Target entity description: 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.
  • A. 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.
  • 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. Great Western Railway
    Great Western Railway is a major British train operating company providing intercity and regional rail services across western and southern England and South Wales.
  • D. 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.
  • E. 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.
  • F. None of above. chosen

Provenance (5 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_69a493ee1f908190992b5f0d1b04459b completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b910c6d481909c56f961a0e8720c completed March 1, 2026, 10:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac599c08f481908b720e2cc7c4a5ef completed March 7, 2026, 5 p.m.
NEDg Description generation batch_69ac5a6b43cc81908086f4c4e2bb34c8 completed March 7, 2026, 5:03 p.m.
NED2 Entity disambiguation (via description) batch_69ac5add366c819086a01654c6cdcf38 completed March 7, 2026, 5:05 p.m.
Created at: March 1, 2026, 7:42 p.m.