Triple

T8780903
Position Surface form Disambiguated ID Type / Status
Subject Coulsdon E208722 entity
Predicate hasRailwayStation P918 FINISHED
Object Coulsdon Town railway station
Coulsdon Town railway station is a suburban rail station in the London Borough of Croydon, providing local services on the Tattenham Corner line into central London.
 E759535 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 Town railway station | Statement: [Coulsdon, hasRailwayStation, Coulsdon Town railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Coulsdon Town railway station
Context triple: [Coulsdon, hasRailwayStation, Coulsdon Town railway station]
  • A. Coulsdon South railway station
    Coulsdon South railway station is a commuter rail station in the London Borough of Croydon, serving the Coulsdon area on the Brighton Main Line with services towards central London and the south coast.
  • B. Carshalton railway station
    Carshalton railway station is a suburban rail station in the London Borough of Sutton, providing local and commuter services on the Sutton and Mole Valley lines.
  • C. Sanderstead railway station
    Sanderstead railway station is a suburban rail station in the London Borough of Croydon, providing commuter services between central London and destinations in Surrey and Sussex.
  • D. Box Hill & Westhumble railway station
    Box Hill & Westhumble railway station is a rural railway stop in Surrey, England, serving the village of Westhumble and providing access to the nearby Box Hill area.
  • E. South Croydon railway station
    South Croydon railway station is a suburban rail station in the London Borough of Croydon that serves commuter services between central London and destinations in Surrey and beyond.
  • 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 Town railway station
Triple: [Coulsdon, hasRailwayStation, Coulsdon Town railway station]
Generated description
Coulsdon Town railway station is a suburban rail station in the London Borough of Croydon, providing local services on the Tattenham Corner line into central London.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Coulsdon Town railway station
Target entity description: Coulsdon Town railway station is a suburban rail station in the London Borough of Croydon, providing local services on the Tattenham Corner line into central London.
  • A. Coulsdon South railway station
    Coulsdon South railway station is a commuter rail station in the London Borough of Croydon, serving the Coulsdon area on the Brighton Main Line with services towards central London and the south coast.
  • B. Carshalton railway station
    Carshalton railway station is a suburban rail station in the London Borough of Sutton, providing local and commuter services on the Sutton and Mole Valley lines.
  • C. Sanderstead railway station
    Sanderstead railway station is a suburban rail station in the London Borough of Croydon, providing commuter services between central London and destinations in Surrey and Sussex.
  • D. Box Hill & Westhumble railway station
    Box Hill & Westhumble railway station is a rural railway stop in Surrey, England, serving the village of Westhumble and providing access to the nearby Box Hill area.
  • E. South Croydon railway station
    South Croydon railway station is a suburban rail station in the London Borough of Croydon that serves commuter services between central London and destinations in Surrey and beyond.
  • 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_69cf6f33ca1081908d65d14c83199c5a completed April 3, 2026, 7:41 a.m.
NEDg Description generation batch_69cf71c118848190a937ecf714556ef3 completed April 3, 2026, 7:52 a.m.
NED2 Entity disambiguation (via description) batch_69cf744b17e88190b14607e6dff823a3 completed April 3, 2026, 8:03 a.m.
Created at: March 30, 2026, 6:42 p.m.