Triple

T3115378
Position Surface form Disambiguated ID Type / Status
Subject London Borough of Croydon E65049 entity
Predicate formedFrom P402 FINISHED
Object Coulsdon and Purley Urban District
Coulsdon and Purley Urban District was a former local government district in Surrey, England, that encompassed suburban areas later incorporated into the London Borough of Croydon.
 E327651 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: Coulsdon and Purley Urban District | Statement: [London Borough of Croydon, formedFrom, Coulsdon and Purley Urban District]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Coulsdon and Purley Urban District
Context triple: [London Borough of Croydon, formedFrom, Coulsdon and Purley Urban District]
  • A. Yiewsley and West Drayton Urban District
    Yiewsley and West Drayton Urban District was a former local government district in Middlesex, England, that administered the suburban areas of Yiewsley and West Drayton before their incorporation into the London Borough of Hillingdon.
  • B. Municipal Borough of Barnes
    The Municipal Borough of Barnes was a former local government district in southwest London that existed until 1965, when it was absorbed into the London Borough of Richmond upon Thames.
  • C. London Borough of Merton
    The London Borough of Merton is a suburban South London borough known for areas like Wimbledon, its mix of residential neighborhoods and green spaces, and strong transport links into central London.
  • D. Tonbridge and Malling Borough
    Tonbridge and Malling Borough is a local government district in Kent, England, encompassing a mix of historic market towns, suburban communities, and rural countryside.
  • E. London Borough of Sutton
    The London Borough of Sutton is a suburban borough in south London, England, known for its residential character, green spaces, and strong local schools.
  • 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: Coulsdon and Purley Urban District
Triple: [London Borough of Croydon, formedFrom, Coulsdon and Purley Urban District]
Generated description
Coulsdon and Purley Urban District was a former local government district in Surrey, England, that encompassed suburban areas later incorporated into the London Borough of Croydon.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Coulsdon and Purley Urban District
Target entity description: Coulsdon and Purley Urban District was a former local government district in Surrey, England, that encompassed suburban areas later incorporated into the London Borough of Croydon.
  • A. Yiewsley and West Drayton Urban District
    Yiewsley and West Drayton Urban District was a former local government district in Middlesex, England, that administered the suburban areas of Yiewsley and West Drayton before their incorporation into the London Borough of Hillingdon.
  • B. Municipal Borough of Barnes
    The Municipal Borough of Barnes was a former local government district in southwest London that existed until 1965, when it was absorbed into the London Borough of Richmond upon Thames.
  • C. London Borough of Merton
    The London Borough of Merton is a suburban South London borough known for areas like Wimbledon, its mix of residential neighborhoods and green spaces, and strong transport links into central London.
  • D. Tonbridge and Malling Borough
    Tonbridge and Malling Borough is a local government district in Kent, England, encompassing a mix of historic market towns, suburban communities, and rural countryside.
  • E. London Borough of Sutton
    The London Borough of Sutton is a suburban borough in south London, England, known for its residential character, green spaces, and strong local schools.
  • 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_69ad857fcc088190b0c4d45a5cde6f61 completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada4e40bc48190b9b17c706a2450d5 completed March 8, 2026, 4:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69b2039d9d408190b01e45f0ced5ca3d completed March 12, 2026, 12:06 a.m.
NEDg Description generation batch_69b20547c0008190ac2589f54111bad9 completed March 12, 2026, 12:13 a.m.
NED2 Entity disambiguation (via description) batch_69b205bdf5c881908bc6ef7c3c30df65 completed March 12, 2026, 12:15 a.m.
Created at: March 8, 2026, 3:04 p.m.