Triple

T11081165
Position Surface form Disambiguated ID Type / Status
Subject West London line E261994 entity
Predicate connectsWith P37 FINISHED
Object West Coast Main Line via Willesden Junction
West Coast Main Line via Willesden Junction is a major segment of the UK’s primary north–south intercity rail route, passing through Willesden Junction in northwest London.
E903762 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: West Coast Main Line via Willesden Junction | Statement: [West London line, connectsWith, West Coast Main Line via Willesden Junction]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: West Coast Main Line via Willesden Junction
Context triple: [West London line, connectsWith, West Coast Main Line via Willesden Junction]
  • A. Chatham Main Line via Lewisham
    The Chatham Main Line via Lewisham is a key suburban and commuter rail route in southeast London that carries trains between central London and Kent through Lewisham.
  • B. Bedford–St Pancras–Sutton route
    The Bedford–St Pancras–Sutton route is a suburban rail service in the London area forming part of the Thameslink network, linking Bedford in Bedfordshire with Sutton in south London via central London stations including St Pancras.
  • C. West London line
    The West London line is a north–south railway route in west London that connects Willesden Junction to Clapham Junction, used by both London Overground and other train operators.
  • D. Tattenham Corner line
    The Tattenham Corner line is a suburban railway branch in South London and Surrey, England, running from Purley to Tattenham Corner and serving areas such as Banstead and Epsom Downs.
  • E. Windsor branch of the South Western Main Line
    The Windsor branch of the South Western Main Line is a short railway branch in Berkshire, England, connecting Windsor to the main London–South West rail network.
  • 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: West Coast Main Line via Willesden Junction
Triple: [West London line, connectsWith, West Coast Main Line via Willesden Junction]
Generated description
West Coast Main Line via Willesden Junction is a major segment of the UK’s primary north–south intercity rail route, passing through Willesden Junction in northwest London.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: West Coast Main Line via Willesden Junction
Target entity description: West Coast Main Line via Willesden Junction is a major segment of the UK’s primary north–south intercity rail route, passing through Willesden Junction in northwest London.
  • A. Chatham Main Line via Lewisham
    The Chatham Main Line via Lewisham is a key suburban and commuter rail route in southeast London that carries trains between central London and Kent through Lewisham.
  • B. Bedford–St Pancras–Sutton route
    The Bedford–St Pancras–Sutton route is a suburban rail service in the London area forming part of the Thameslink network, linking Bedford in Bedfordshire with Sutton in south London via central London stations including St Pancras.
  • C. West London line
    The West London line is a north–south railway route in west London that connects Willesden Junction to Clapham Junction, used by both London Overground and other train operators.
  • D. Tattenham Corner line
    The Tattenham Corner line is a suburban railway branch in South London and Surrey, England, running from Purley to Tattenham Corner and serving areas such as Banstead and Epsom Downs.
  • E. Windsor branch of the South Western Main Line
    The Windsor branch of the South Western Main Line is a short railway branch in Berkshire, England, connecting Windsor to the main London–South West rail network.
  • 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_69d6aa9983c08190b0ef61603b69feac completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d79996d9408190b159d14b23c25ed1 completed April 9, 2026, 12:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69e3e789d7248190a40de0bdda539f45 completed April 18, 2026, 8:20 p.m.
NEDg Description generation batch_69e3f2c889dc81909a04c1db0509e3d9 completed April 18, 2026, 9:08 p.m.
NED2 Entity disambiguation (via description) batch_69e3f4746dbc8190a0e28202ad5e6b4f completed April 18, 2026, 9:15 p.m.
Created at: April 8, 2026, 9:27 p.m.