Triple

T22141864
Position Surface form Disambiguated ID Type / Status
Subject Charterhouse Street E547177 entity
Predicate hasNearbyRailwayInfrastructure P231 FINISHED
Object Farringdon railway viaduct — 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: Farringdon railway viaduct | Statement: [Charterhouse Street, hasNearbyRailwayInfrastructure, Farringdon railway viaduct]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Farringdon railway viaduct
Context triple: [Charterhouse Street, hasNearbyRailwayInfrastructure, Farringdon railway viaduct]
  • A. Holborn Viaduct
    Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
  • B. Dollis Brook Viaduct
    Dollis Brook Viaduct is a railway viaduct in north London that carries the Northern line over Dollis Brook and is notable as one of the tallest structures on the London Underground network.
  • C. Mill Hill Broadway viaduct
    Mill Hill Broadway viaduct is a railway bridge structure in the Mill Hill Broadway area of north London, carrying tracks over the surrounding roads and urban landscape.
  • D. Cannon Street Railway Bridge
    Cannon Street Railway Bridge is a steel girder railway bridge over the River Thames in central London, carrying trains into Cannon Street station.
  • E. Battersea Railway Bridge
    Battersea Railway Bridge is a historic railway bridge in London that carries trains across the River Thames between Battersea and Fulham on the West London line.
  • 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: Farringdon railway viaduct
Target entity description: Farringdon railway viaduct is an elevated rail structure in central London that carries train lines across the streets near Farringdon station.
  • A. Holborn Viaduct
    Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
  • B. Dollis Brook Viaduct
    Dollis Brook Viaduct is a railway viaduct in north London that carries the Northern line over Dollis Brook and is notable as one of the tallest structures on the London Underground network.
  • C. Mill Hill Broadway viaduct
    Mill Hill Broadway viaduct is a railway bridge structure in the Mill Hill Broadway area of north London, carrying tracks over the surrounding roads and urban landscape.
  • D. Cannon Street Railway Bridge
    Cannon Street Railway Bridge is a steel girder railway bridge over the River Thames in central London, carrying trains into Cannon Street station.
  • E. Battersea Railway Bridge
    Battersea Railway Bridge is a historic railway bridge in London that carries trains across the River Thames between Battersea and Fulham on the West London line.
  • 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_69e11e3a95d88190a3bd80d9471976c3 completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f129beb6c8819083be3b7479bc032f completed April 28, 2026, 9:42 p.m.
Created at: April 16, 2026, 8:32 p.m.