Triple

T20429498
Position Surface form Disambiguated ID Type / Status
Subject Purley E501091 entity
Predicate hasRailwayStation P918 FINISHED
Object Purley Oaks railway station
Purley Oaks railway station is a suburban railway station in the London Borough of Croydon serving the Purley area with commuter services into central London and surrounding destinations.
 E1431478 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: Purley Oaks railway station | Statement: [Purley, hasRailwayStation, Purley Oaks railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Purley Oaks railway station
Context triple: [Purley, hasRailwayStation, Purley Oaks railway station]
  • A. Purley railway station
    Purley railway station is a suburban railway station in the London Borough of Croydon that serves as a key junction and commuter hub on the Southern network in South London.
  • B. Herne Hill railway station
    Herne Hill railway station is a suburban rail station in south London that provides commuter services connecting the local area to central London and other parts of the city.
  • C. Weybridge railway station
    Weybridge railway station is a suburban rail station in Surrey, England, serving the town of Weybridge with regular commuter and regional services.
  • D. Palmers Green railway station
    Palmers Green railway station is a suburban rail station in north London serving the Palmers Green area with services on the Hertford Loop Line into central London.
  • E. Brookmans Park railway station
    Brookmans Park railway station is a suburban rail stop in Hertfordshire, England, serving the village of Brookmans Park on the commuter route into central 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: Purley Oaks railway station
Triple: [Purley, hasRailwayStation, Purley Oaks railway station]
Generated description
Purley Oaks railway station is a suburban railway station in the London Borough of Croydon serving the Purley area with commuter services into central London and surrounding destinations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Purley Oaks railway station
Target entity description: Purley Oaks railway station is a suburban railway station in the London Borough of Croydon serving the Purley area with commuter services into central London and surrounding destinations.
  • A. Purley railway station
    Purley railway station is a suburban railway station in the London Borough of Croydon that serves as a key junction and commuter hub on the Southern network in South London.
  • B. Herne Hill railway station
    Herne Hill railway station is a suburban rail station in south London that provides commuter services connecting the local area to central London and other parts of the city.
  • C. Weybridge railway station
    Weybridge railway station is a suburban rail station in Surrey, England, serving the town of Weybridge with regular commuter and regional services.
  • D. Palmers Green railway station
    Palmers Green railway station is a suburban rail station in north London serving the Palmers Green area with services on the Hertford Loop Line into central London.
  • E. Brookmans Park railway station
    Brookmans Park railway station is a suburban rail stop in Hertfordshire, England, serving the village of Brookmans Park on the commuter route into central 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_69e0b4aa68fc8190b1a14c55575ef04a completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e67bac39288190b294b291301ac843 completed April 20, 2026, 7:17 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0883f2977c8190b8c98b5beec749c1 completed May 16, 2026, 2:49 p.m.
NEDg Description generation batch_6a0885caeb648190b07dd6dab576a9f8 completed May 16, 2026, 2:57 p.m.
NED2 Entity disambiguation (via description) batch_6a08863ed9748190bd15713b2cfa61c0 completed May 16, 2026, 2:59 p.m.
Created at: April 16, 2026, 11:31 a.m.