Triple

T18103773
Position Surface form Disambiguated ID Type / Status
Subject Coulsdon South railway station E433294 entity
Predicate renamed P1742 FINISHED
Object Coulsdon South — 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: Coulsdon South | Statement: [Coulsdon South railway station, renamed, Coulsdon South]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Coulsdon South
Context triple: [Coulsdon South railway station, renamed, Coulsdon South]
  • A. Coulsdon
    Coulsdon is a suburban town in the London Borough of Croydon, England, known for its residential character and proximity to the North Downs.
  • B. Coulsdon Common
    Coulsdon Common is a large public open space and nature reserve in the Coulsdon area of south London, known for its woodlands, grasslands, and walking trails.
  • C. Coulsdon Rural District
    Coulsdon Rural District was a former local government district in Surrey, England, that governed a largely rural area south of London before its urbanization and reorganization in the early 20th century.
  • D. Beddington
    Beddington is a suburban area in South London known for its historic village core, green spaces, and proximity to Croydon and central London.
  • E. Earlsfield
    Earlsfield is a residential district in southwest London known for its strong transport links, family-friendly atmosphere, and local high street centered around Garratt Lane.
  • 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: Coulsdon South
Target entity description: Coulsdon South is a railway station in the London Borough of Croydon serving the Coulsdon area on the Brighton Main Line.
  • A. Coulsdon
    Coulsdon is a suburban town in the London Borough of Croydon, England, known for its residential character and proximity to the North Downs.
  • B. Coulsdon Common
    Coulsdon Common is a large public open space and nature reserve in the Coulsdon area of south London, known for its woodlands, grasslands, and walking trails.
  • C. Coulsdon Rural District
    Coulsdon Rural District was a former local government district in Surrey, England, that governed a largely rural area south of London before its urbanization and reorganization in the early 20th century.
  • D. Beddington
    Beddington is a suburban area in South London known for its historic village core, green spaces, and proximity to Croydon and central London.
  • E. Earlsfield
    Earlsfield is a residential district in southwest London known for its strong transport links, family-friendly atmosphere, and local high street centered around Garratt Lane.
  • 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_69d8b90916008190a1f110bd7ced5473 completed April 10, 2026, 8:47 a.m.
NER Named-entity recognition batch_69e4ddb8dd308190a9c98ac2b1d8b872 completed April 19, 2026, 1:50 p.m.
Created at: April 10, 2026, 10:28 a.m.