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
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.
 E1481152 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: 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.
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: Uxbridge branch of the Piccadilly line
Triple: [Rayners Lane station, isOnBranch, Uxbridge branch of the Piccadilly line]
Generated 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.
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 (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_69e0b51cd5cc81909ac1187971e8a8ad completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e8ad30512081909012ce318fa67679 completed April 22, 2026, 11:12 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09b4168f7c819084c0f779680a8052 completed May 17, 2026, 12:27 p.m.
NEDg Description generation batch_6a09b4f828b88190a2b203eef44880f5 completed May 17, 2026, 12:30 p.m.
NED2 Entity disambiguation (via description) batch_6a09b5aeb89c81909569ae7d5b611357 completed May 17, 2026, 12:33 p.m.
Created at: April 16, 2026, 5:03 p.m.