Triple

T12611605
Position Surface form Disambiguated ID Type / Status
Subject Central line (West Ruislip branch) E301136 entity
Predicate connectsTo P845 FINISHED
Object Central line (Ealing Broadway branch)
The Central line (Ealing Broadway branch) is a western suburban branch of London's Central line on the Underground network, running between central London and Ealing Broadway.
 E993096 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: Central line (Ealing Broadway branch) | Statement: [Central line (West Ruislip branch), connectsTo, Central line (Ealing Broadway branch)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Central line (Ealing Broadway branch)
Context triple: [Central line (West Ruislip branch), connectsTo, Central line (Ealing Broadway branch)]
  • A. Central line (West Ruislip branch)
    The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
  • B. Cockfosters branch
    The Cockfosters branch is the eastern arm of the London Underground’s Piccadilly line, running from central London out to its terminus at Cockfosters in north London.
  • C. 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.
  • D. Styal Line
    The Styal Line is a suburban railway route in Greater Manchester, England, connecting central Manchester with Manchester Airport and surrounding areas.
  • E. Fife Circle Line
    The Fife Circle Line is a suburban rail route in Fife, Scotland, forming a loop north of Edinburgh that serves towns such as Dunfermline, Kirkcaldy, and Glenrothes with Thornton.
  • 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: Central line (Ealing Broadway branch)
Triple: [Central line (West Ruislip branch), connectsTo, Central line (Ealing Broadway branch)]
Generated description
The Central line (Ealing Broadway branch) is a western suburban branch of London's Central line on the Underground network, running between central London and Ealing Broadway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Central line (Ealing Broadway branch)
Target entity description: The Central line (Ealing Broadway branch) is a western suburban branch of London's Central line on the Underground network, running between central London and Ealing Broadway.
  • A. Central line (West Ruislip branch)
    The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
  • B. Cockfosters branch
    The Cockfosters branch is the eastern arm of the London Underground’s Piccadilly line, running from central London out to its terminus at Cockfosters in north London.
  • C. 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.
  • D. Styal Line
    The Styal Line is a suburban railway route in Greater Manchester, England, connecting central Manchester with Manchester Airport and surrounding areas.
  • E. Fife Circle Line
    The Fife Circle Line is a suburban rail route in Fife, Scotland, forming a loop north of Edinburgh that serves towns such as Dunfermline, Kirkcaldy, and Glenrothes with Thornton.
  • 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_69d7bdea2ca881908f379526c13b1145 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d954ea1d748190a848e8a7873e2ea5 completed April 10, 2026, 7:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69f65ed1044c8190bbe881d32a4bf29e completed May 2, 2026, 8:30 p.m.
NEDg Description generation batch_69f6617479ec819080eac67abc9bc435 completed May 2, 2026, 8:41 p.m.
NED2 Entity disambiguation (via description) batch_69f662695a348190b9911a19dfc9e779 completed May 2, 2026, 8:45 p.m.
Created at: April 9, 2026, 5:11 p.m.