Triple

T10100865
Position Surface form Disambiguated ID Type / Status
Subject Chigwell E216194 entity
Predicate hasRailwayStation P918 FINISHED
Object Chigwell tube station
Chigwell tube station is a London Underground station on the Central line serving the suburban area of Chigwell in Essex, England.
 E841208 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: Chigwell tube station | Statement: [Chigwell, hasRailwayStation, Chigwell tube station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chigwell tube station
Context triple: [Chigwell, hasRailwayStation, Chigwell tube station]
  • A. Wanstead tube station
    Wanstead tube station is a London Underground station on the Central line serving the Wanstead area in East London.
  • B. Snaresbrook tube station
    Snaresbrook tube station is a London Underground station on the Central line serving the Snaresbrook area in northeast London.
  • C. Roding Valley tube station
    Roding Valley tube station is a small London Underground station on the Central line serving the suburban area around the River Roding in northeast London.
  • D. Hainault tube station
    Hainault tube station is a London Underground station on the Central line serving the Hainault area in northeast London.
  • E. Northfields tube station
    Northfields tube station is a London Underground station in west London on the Piccadilly line, serving the Northfields area between South Ealing and Boston Manor.
  • 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: Chigwell tube station
Triple: [Chigwell, hasRailwayStation, Chigwell tube station]
Generated description
Chigwell tube station is a London Underground station on the Central line serving the suburban area of Chigwell in Essex, England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chigwell tube station
Target entity description: Chigwell tube station is a London Underground station on the Central line serving the suburban area of Chigwell in Essex, England.
  • A. Wanstead tube station
    Wanstead tube station is a London Underground station on the Central line serving the Wanstead area in East London.
  • B. Snaresbrook tube station
    Snaresbrook tube station is a London Underground station on the Central line serving the Snaresbrook area in northeast London.
  • C. Roding Valley tube station
    Roding Valley tube station is a small London Underground station on the Central line serving the suburban area around the River Roding in northeast London.
  • D. Hainault tube station
    Hainault tube station is a London Underground station on the Central line serving the Hainault area in northeast London.
  • E. Northfields tube station
    Northfields tube station is a London Underground station in west London on the Piccadilly line, serving the Northfields area between South Ealing and Boston Manor.
  • 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_69ca83d039f08190b9d10363221c69fb completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cdd09878f88190bcfa2c81fb10e821 completed April 2, 2026, 2:12 a.m.
NED1 Entity disambiguation (via context triple) batch_69d2b6cb50b08190a0ff42c60d338c79 completed April 5, 2026, 7:23 p.m.
NEDg Description generation batch_69d2b7aecdb081909f651c1bc1bcfd75 completed April 5, 2026, 7:27 p.m.
NED2 Entity disambiguation (via description) batch_69d2b86bf8948190a79046efadc4adea completed April 5, 2026, 7:30 p.m.
Created at: March 30, 2026, 9:02 p.m.