Triple

T8197900
Position Surface form Disambiguated ID Type / Status
Subject Kennington Underground Station E191478 entity
Predicate servedByBranch P13713 FINISHED
Object Northern line Charing Cross branch
The Northern line Charing Cross branch is a central London section of the London Underground’s Northern line running via Charing Cross and serving key stations in the West End.
E61912 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: Northern line Charing Cross branch | Statement: [Kennington Underground Station, servedByBranch, Northern line Charing Cross branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Northern line Charing Cross branch
Context triple: [Kennington Underground Station, servedByBranch, Northern line Charing Cross branch]
  • A. Northern line
    The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
  • B. Holborn–Aldwych branch
    The Holborn–Aldwych branch was a short, now-disused spur of the London Underground’s Piccadilly line that ran between Holborn and Aldwych in central London.
  • C. Hammersmith & City line
    The Hammersmith & City line is a London Underground service running across west and central London, linking Hammersmith to Barking via key hubs such as Paddington, King's Cross St Pancras, and Liverpool Street.
  • D. Piccadilly line
    The Piccadilly line is a major deep-level London Underground route running from the north and west suburbs through central London, serving key destinations including Heathrow Airport.
  • E. Bakerloo line
    The Bakerloo line is a deep-level London Underground railway line running between Harrow & Wealdstone in northwest London and Elephant & Castle in south London, known for serving key central locations such as Baker Street, Oxford Circus, and Waterloo.
  • 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: Northern line Charing Cross branch
Triple: [Kennington Underground Station, servedByBranch, Northern line Charing Cross branch]
Generated description
The Northern line Charing Cross branch is a central London section of the London Underground’s Northern line running via Charing Cross and serving key stations in the West End.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Northern line Charing Cross branch
Target entity description: The Northern line Charing Cross branch is a central London section of the London Underground’s Northern line running via Charing Cross and serving key stations in the West End.
  • A. Northern line chosen
    The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
  • B. Holborn–Aldwych branch
    The Holborn–Aldwych branch was a short, now-disused spur of the London Underground’s Piccadilly line that ran between Holborn and Aldwych in central London.
  • C. Hammersmith & City line
    The Hammersmith & City line is a London Underground service running across west and central London, linking Hammersmith to Barking via key hubs such as Paddington, King's Cross St Pancras, and Liverpool Street.
  • D. Piccadilly line
    The Piccadilly line is a major deep-level London Underground route running from the north and west suburbs through central London, serving key destinations including Heathrow Airport.
  • E. Bakerloo line
    The Bakerloo line is a deep-level London Underground railway line running between Harrow & Wealdstone in northwest London and Elephant & Castle in south London, known for serving key central locations such as Baker Street, Oxford Circus, and Waterloo.
  • F. None of above.

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_69ca82c6e9548190a4c5ca14516e4417 completed March 30, 2026, 2:03 p.m.
NER Named-entity recognition batch_69cb5c2341f881908be59c378896e5bc completed March 31, 2026, 5:31 a.m.
NED1 Entity disambiguation (via context triple) batch_69cde73e4c3881908a845fd61373cbec completed April 2, 2026, 3:49 a.m.
NEDg Description generation batch_69cdeb1fa7308190810b1fcc2184374a completed April 2, 2026, 4:05 a.m.
NED2 Entity disambiguation (via description) batch_69cdec3081d88190ad0699f9072d3fc7 completed April 2, 2026, 4:10 a.m.
Created at: March 30, 2026, 5:42 p.m.