Triple

T409649
Position Surface form Disambiguated ID Type / Status
Subject London Euston E9460 entity
Predicate servedByOperator P5884 FINISHED
Object London Northwestern Railway
London Northwestern Railway is a British train operating company providing regional and commuter rail services across the West Midlands, North West England, and on routes to and from London.
E52818 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 Northwestern Railway | Statement: [London Euston, servedByOperator, London Northwestern Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: London Northwestern Railway
Context triple: [London Euston, servedByOperator, London Northwestern Railway]
  • A. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • B. London and North Western Railway
    London and North Western Railway was a major 19th- and early 20th-century British railway company that operated extensive routes across England and Wales before becoming part of the London, Midland and Scottish Railway in 1923.
  • C. 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.
  • D. Thameslink
    Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
  • E. 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.
  • 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 Northwestern Railway
Triple: [London Euston, servedByOperator, London Northwestern Railway]
Generated description
London Northwestern Railway is a British train operating company providing regional and commuter rail services across the West Midlands, North West England, and on routes to and from London.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: London Northwestern Railway
Target entity description: London Northwestern Railway is a British train operating company providing regional and commuter rail services across the West Midlands, North West England, and on routes to and from London.
  • A. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • B. London and North Western Railway
    London and North Western Railway was a major 19th- and early 20th-century British railway company that operated extensive routes across England and Wales before becoming part of the London, Midland and Scottish Railway in 1923.
  • C. 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.
  • D. Thameslink
    Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
  • E. 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.
  • 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_69a2e80111fc8190961d5b7c6154123f completed Feb. 28, 2026, 1:05 p.m.
NER Named-entity recognition batch_69a2ecc098c4819088d127c5ea55ced9 completed Feb. 28, 2026, 1:25 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4239ffb5c819091b96dbe38a06d07 completed March 1, 2026, 11:31 a.m.
NEDg Description generation batch_69a423fc21188190bacc03bfae9ac401 completed March 1, 2026, 11:33 a.m.
NED2 Entity disambiguation (via description) batch_69a42486e1e08190b7603c34d625da7c completed March 1, 2026, 11:35 a.m.
Created at: Feb. 28, 2026, 1:08 p.m.