Triple

T21349947
Position Surface form Disambiguated ID Type / Status
Subject Rayners Lane station E526447 entity
Predicate isOnBranch P20674 FINISHED
Object Uxbridge branch of the Piccadilly line — NE NERFINISHED

How this triple was built (3 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: Uxbridge branch of the Piccadilly line | Statement: [Rayners Lane station, isOnBranch, Uxbridge branch of the Piccadilly line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Uxbridge branch of the Piccadilly line
Context triple: [Rayners Lane station, isOnBranch, Uxbridge branch of the Piccadilly line]
  • A. Heathrow branch of the Piccadilly line
    The Heathrow branch of the Piccadilly line is the western arm of London Underground’s Piccadilly line that provides direct tube services between central London and Heathrow Airport.
  • B. Ealing Broadway branch of the District line
    The Ealing Broadway branch of the District line is a western suburban section of London’s Underground network that runs between central London and Ealing Broadway, serving key stations in west London.
  • C. Edgware Road branch of the District line
    The Edgware Road branch of the District line is a London Underground route running between Edgware Road and key central-west stations, providing an important link through west-central London.
  • D. London Underground Metropolitan line
    The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
  • E. Edgware branch
    The Edgware branch is a northern suburban section of the London Underground’s Northern line running from central London to Edgware.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Uxbridge branch of the Piccadilly line
Target entity description: The Uxbridge branch of the Piccadilly line is a western suburban branch of London’s Underground network running between central London and Uxbridge, serving stations such as Rayners Lane.
  • A. Heathrow branch of the Piccadilly line
    The Heathrow branch of the Piccadilly line is the western arm of London Underground’s Piccadilly line that provides direct tube services between central London and Heathrow Airport.
  • B. Ealing Broadway branch of the District line
    The Ealing Broadway branch of the District line is a western suburban section of London’s Underground network that runs between central London and Ealing Broadway, serving key stations in west London.
  • C. Edgware Road branch of the District line
    The Edgware Road branch of the District line is a London Underground route running between Edgware Road and key central-west stations, providing an important link through west-central London.
  • D. London Underground Metropolitan line
    The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
  • E. Edgware branch
    The Edgware branch is a northern suburban section of the London Underground’s Northern line running from central London to Edgware.
  • F. None of above. chosen

Provenance (2 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_69e0b51cd5cc81909ac1187971e8a8ad completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e8ad30512081909012ce318fa67679 completed April 22, 2026, 11:12 a.m.
Created at: April 16, 2026, 5:03 p.m.