Triple

T19277520
Position Surface form Disambiguated ID Type / Status
Subject North Harrow Underground station E482094 entity
Predicate hasAdjacentStation P231 FINISHED
Object Harrow-on-the-Hill Underground station — 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: Harrow-on-the-Hill Underground station | Statement: [North Harrow Underground station, hasAdjacentStation, Harrow-on-the-Hill Underground station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Harrow-on-the-Hill Underground station
Context triple: [North Harrow Underground station, hasAdjacentStation, Harrow-on-the-Hill Underground station]
  • A. North Harrow Underground station
    North Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban area of North Harrow in northwest London.
  • B. West Harrow Underground station
    West Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban West Harrow area in the London Borough of Harrow.
  • C. Hampstead tube station
    Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
  • D. Balham Underground station
    Balham Underground station is a London Underground station in south London served by the Northern line, providing access to the Balham area and connections with National Rail services.
  • E. Mill Hill East Underground Station
    Mill Hill East Underground Station is a Northern line station on the London Underground network serving the Mill Hill area in the London Borough of Barnet.
  • 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: Harrow-on-the-Hill Underground station
Target entity description: Harrow-on-the-Hill Underground station is a major London Underground and National Rail interchange in northwest London, serving as a key hub on the Metropolitan line.
  • A. North Harrow Underground station
    North Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban area of North Harrow in northwest London.
  • B. West Harrow Underground station
    West Harrow Underground station is a London Underground station on the Metropolitan line serving the suburban West Harrow area in the London Borough of Harrow.
  • C. Hampstead tube station
    Hampstead tube station is a London Underground station on the Northern line, known for serving the Hampstead area of the London Borough of Camden and for having one of the deepest platforms on the network.
  • D. Balham Underground station
    Balham Underground station is a London Underground station in south London served by the Northern line, providing access to the Balham area and connections with National Rail services.
  • E. Mill Hill East Underground Station
    Mill Hill East Underground Station is a Northern line station on the London Underground network serving the Mill Hill area in the London Borough of Barnet.
  • 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_69d8e8ce54cc8190998418ff1f66ef28 completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5fbbd5f34819086535f28fd880411 completed April 20, 2026, 10:11 a.m.
Created at: April 10, 2026, 1:30 p.m.