Triple

T20088508
Position Surface form Disambiguated ID Type / Status
Subject West Harrow Underground station E496201 entity
Predicate lineSection P43954 FINISHED
Object Metropolitan line Uxbridge branch NE NERFINISHED

How this triple was built (2 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: Metropolitan line Uxbridge branch | Statement: [West Harrow Underground station, lineSection, Metropolitan line Uxbridge branch]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Metropolitan line Uxbridge branch
Context triple: [West Harrow Underground station, lineSection, Metropolitan line Uxbridge branch]
  • A. Metropolitan line Uxbridge branch chosen
    The Metropolitan line Uxbridge branch is a suburban section of the London Underground’s Metropolitan line that runs between central London and Uxbridge, serving several northwest London boroughs.
  • B. West London line
    The West London line is a north–south railway route in west London that connects Willesden Junction to Clapham Junction, used by both London Overground and other train operators.
  • C. Hampstead & Highgate line
    The Hampstead & Highgate line was an early deep-level London Underground route in north London that later became part of the Northern line.
  • D. Holborn Viaduct–Herne Hill line
    The Holborn Viaduct–Herne Hill line is a suburban railway route in London that connects the City with south London, historically forming part of key commuter services into central London.
  • E. North London line
    The North London line is a key orbital railway route in London that runs across the northern part of the city, connecting numerous suburban areas and major interchange stations.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69da626eee3881909f3454986d4a6511 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e6655d65a88190a510132f36341b6c completed April 20, 2026, 5:41 p.m.
Created at: April 11, 2026, 11:17 p.m.