Triple

T10464852
Position Surface form Disambiguated ID Type / Status
Subject Acton, London, England E246764 entity
Predicate hasUndergroundStation P918 FINISHED
Object South Acton station
South Acton station is a London Overground railway station in the Acton area of west London, serving local commuter routes.
 E872200 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: South Acton station | Statement: [Acton, London, England, hasUndergroundStation, South Acton station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Acton station
Context triple: [Acton, London, England, hasUndergroundStation, South Acton station]
  • A. South Acton station
    South Acton station is a commuter rail stop in Acton, Massachusetts, serving as a key station on the MBTA Fitchburg Line connecting the town to Boston and surrounding areas.
  • B. West Acton tube station
    West Acton tube station is a London Underground station in the Acton area of west London, served by the Central line.
  • C. East Acton tube station
    East Acton tube station is a London Underground station in West London served by the Central line.
  • D. North Acton tube station
    North Acton tube station is a London Underground station in the Acton area of west London, served by the Central line.
  • E. Acton Main Line railway station
    Acton Main Line railway station is a suburban rail station in the Acton area of west London, serving local and regional services on the Great Western Main Line and the Elizabeth line.
  • 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: South Acton station
Triple: [Acton, London, England, hasUndergroundStation, South Acton station]
Generated description
South Acton station is a London Overground railway station in the Acton area of west London, serving local commuter routes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Acton station
Target entity description: South Acton station is a London Overground railway station in the Acton area of west London, serving local commuter routes.
  • A. South Acton station
    South Acton station is a commuter rail stop in Acton, Massachusetts, serving as a key station on the MBTA Fitchburg Line connecting the town to Boston and surrounding areas.
  • B. West Acton tube station
    West Acton tube station is a London Underground station in the Acton area of west London, served by the Central line.
  • C. East Acton tube station
    East Acton tube station is a London Underground station in West London served by the Central line.
  • D. North Acton tube station
    North Acton tube station is a London Underground station in the Acton area of west London, served by the Central line.
  • E. Acton Main Line railway station
    Acton Main Line railway station is a suburban rail station in the Acton area of west London, serving local and regional services on the Great Western Main Line and the Elizabeth line.
  • 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_69d381c16c248190a2fe5b471e584e9c completed April 6, 2026, 9:49 a.m.
NER Named-entity recognition batch_69d50886c2a8819086da6c08356ec6bf completed April 7, 2026, 1:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69d94b047b588190a116f4fbd4cdbc35 completed April 10, 2026, 7:09 p.m.
NEDg Description generation batch_69d94ca07da481908f2d546f8ddc9326 completed April 10, 2026, 7:16 p.m.
NED2 Entity disambiguation (via description) batch_69d94e8687bc819082b672a64bf85500 completed April 10, 2026, 7:24 p.m.
Created at: April 6, 2026, 12:19 p.m.