Triple

T8781283
Position Surface form Disambiguated ID Type / Status
Subject London Borough of Redbridge E208731 entity
Predicate hasUndergroundStation P918 FINISHED
Object Wanstead tube station
Wanstead tube station is a London Underground station on the Central line serving the Wanstead area in East London.
 E781960 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: Wanstead tube station | Statement: [London Borough of Redbridge, hasUndergroundStation, Wanstead tube station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Wanstead tube station
Context triple: [London Borough of Redbridge, hasUndergroundStation, Wanstead tube station]
  • A. Redbridge tube station
    Redbridge tube station is a London Underground station on the Central line serving the Redbridge area in East London.
  • B. Uxbridge tube station
    Uxbridge tube station is a London Underground station in west London serving as the terminus for both the Metropolitan and Piccadilly lines.
  • C. Gants Hill tube station
    Gants Hill tube station is a London Underground station on the Central line, notable for its distinctive circular ticket hall and location in the northeast London suburb of Gants Hill.
  • D. Lewisham station
    Lewisham station is a major transport hub in southeast London that serves National Rail, Docklands Light Railway, and numerous bus routes.
  • E. Osterley tube station
    Osterley tube station is a London Underground station on the Piccadilly line serving the Osterley area in west London.
  • 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: Wanstead tube station
Triple: [London Borough of Redbridge, hasUndergroundStation, Wanstead tube station]
Generated description
Wanstead tube station is a London Underground station on the Central line serving the Wanstead area in East London.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Wanstead tube station
Target entity description: Wanstead tube station is a London Underground station on the Central line serving the Wanstead area in East London.
  • A. Redbridge tube station
    Redbridge tube station is a London Underground station on the Central line serving the Redbridge area in East London.
  • B. Uxbridge tube station
    Uxbridge tube station is a London Underground station in west London serving as the terminus for both the Metropolitan and Piccadilly lines.
  • C. Gants Hill tube station
    Gants Hill tube station is a London Underground station on the Central line, notable for its distinctive circular ticket hall and location in the northeast London suburb of Gants Hill.
  • D. Lewisham station
    Lewisham station is a major transport hub in southeast London that serves National Rail, Docklands Light Railway, and numerous bus routes.
  • E. Osterley tube station
    Osterley tube station is a London Underground station on the Piccadilly line serving the Osterley area in west London.
  • 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_69ca835fbee88190bf625939bac48d7f completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc5f55b7b08190ab3e18cd634a144b completed March 31, 2026, 11:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69d054339b988190849092f178a7af2c completed April 3, 2026, 11:58 p.m.
NEDg Description generation batch_69d05653bc8881909707ceddb5c0db79 completed April 4, 2026, 12:07 a.m.
NED2 Entity disambiguation (via description) batch_69d056ef48dc8190a6360286e34e06e9 completed April 4, 2026, 12:10 a.m.
Created at: March 30, 2026, 6:42 p.m.