Triple

T20057763
Position Surface form Disambiguated ID Type / Status
Subject A40 Western Avenue E499384 entity
Predicate nearbyRailStations P31869 FINISHED
Object Greenford station
Greenford station is a transport hub in Greenford, west London, served by London Underground’s Central line and National Rail services.
 E1419646 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: Greenford station | Statement: [A40 Western Avenue, nearbyRailStations, Greenford station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Greenford station
Context triple: [A40 Western Avenue, nearbyRailStations, Greenford station]
  • A. Gunnersbury station
    Gunnersbury station is a London Underground and London Overground station in west London serving the District line and the North London line.
  • B. Stamford Brook station
    Stamford Brook station is a London Underground station in west London served by the District line.
  • C. Northolt Park station
    Northolt Park station is a suburban railway station in the London Borough of Harrow served by Chiltern Railways services between central London and the Midlands.
  • D. Croxley station
    Croxley station is a London Underground station in Hertfordshire on the Metropolitan line serving the Croxley Green area near Watford.
  • E. Northwick Park station
    Northwick Park station is a London Underground station on the Metropolitan line serving the Northwick Park area in the London Borough of Brent.
  • 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: Greenford station
Triple: [A40 Western Avenue, nearbyRailStations, Greenford station]
Generated description
Greenford station is a transport hub in Greenford, west London, served by London Underground’s Central line and National Rail services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Greenford station
Target entity description: Greenford station is a transport hub in Greenford, west London, served by London Underground’s Central line and National Rail services.
  • A. Gunnersbury station
    Gunnersbury station is a London Underground and London Overground station in west London serving the District line and the North London line.
  • B. Stamford Brook station
    Stamford Brook station is a London Underground station in west London served by the District line.
  • C. Northolt Park station
    Northolt Park station is a suburban railway station in the London Borough of Harrow served by Chiltern Railways services between central London and the Midlands.
  • D. Croxley station
    Croxley station is a London Underground station in Hertfordshire on the Metropolitan line serving the Croxley Green area near Watford.
  • E. Northwick Park station
    Northwick Park station is a London Underground station on the Metropolitan line serving the Northwick Park area in the London Borough of Brent.
  • 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_69da6276bcf48190aabbf279192a5fb4 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e6637325908190aefc0e27e2ed5750 completed April 20, 2026, 5:33 p.m.
NED1 Entity disambiguation (via context triple) batch_6a084b761ce08190b92227994897ed07 completed May 16, 2026, 10:48 a.m.
NEDg Description generation batch_6a084c74632c81909480eac174fdcad3 completed May 16, 2026, 10:52 a.m.
NED2 Entity disambiguation (via description) batch_6a084d2161cc81908e1b5993cea934a0 completed May 16, 2026, 10:55 a.m.
Created at: April 11, 2026, 3:38 p.m.