Triple

T4588104
Position Surface form Disambiguated ID Type / Status
Subject Tattenham Corner railway station E103417 entity
Predicate railwayLine P848 FINISHED
Object Tattenham Corner line
The Tattenham Corner line is a suburban railway branch in South London and Surrey, England, running from Purley to Tattenham Corner and serving areas such as Banstead and Epsom Downs.
E455417 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: Tattenham Corner line | Statement: [Tattenham Corner railway station, railwayLine, Tattenham Corner line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tattenham Corner line
Context triple: [Tattenham Corner railway station, railwayLine, Tattenham Corner line]
  • A. North Downs Line
    The North Downs Line is a railway route in South East England that runs across the North Downs, linking Reading with Redhill and Gatwick Airport via towns such as Guildford.
  • B. Oxted line
    The Oxted line is a suburban and rural railway route in southern England connecting London with towns in Surrey and Sussex, operated as part of the Southern rail network.
  • C. Epsom Downs line
    The Epsom Downs line is a suburban railway route in South London and Surrey that connects Sutton to Epsom Downs, serving several commuter towns along the way.
  • D. Hounslow Loop Line
    The Hounslow Loop Line is a suburban railway route in West London that forms a loop off the South Western Main Line, providing local passenger services through areas such as Hounslow, Isleworth, and Richmond.
  • E. Catford Loop Line
    The Catford Loop Line is a suburban railway route in southeast London that provides an alternative corridor between central London and Kent, serving several local commuter stations along the way.
  • 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: Tattenham Corner line
Triple: [Tattenham Corner railway station, railwayLine, Tattenham Corner line]
Generated description
The Tattenham Corner line is a suburban railway branch in South London and Surrey, England, running from Purley to Tattenham Corner and serving areas such as Banstead and Epsom Downs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tattenham Corner line
Target entity description: The Tattenham Corner line is a suburban railway branch in South London and Surrey, England, running from Purley to Tattenham Corner and serving areas such as Banstead and Epsom Downs.
  • A. North Downs Line
    The North Downs Line is a railway route in South East England that runs across the North Downs, linking Reading with Redhill and Gatwick Airport via towns such as Guildford.
  • B. Oxted line
    The Oxted line is a suburban and rural railway route in southern England connecting London with towns in Surrey and Sussex, operated as part of the Southern rail network.
  • C. Epsom Downs line
    The Epsom Downs line is a suburban railway route in South London and Surrey that connects Sutton to Epsom Downs, serving several commuter towns along the way.
  • D. Hounslow Loop Line
    The Hounslow Loop Line is a suburban railway route in West London that forms a loop off the South Western Main Line, providing local passenger services through areas such as Hounslow, Isleworth, and Richmond.
  • E. Catford Loop Line
    The Catford Loop Line is a suburban railway route in southeast London that provides an alternative corridor between central London and Kent, serving several local commuter stations along the way.
  • 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_69bd43dccaf08190aa89e9991a289719 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd592115fc8190b1aee1d8bbaf1ee3 completed March 20, 2026, 2:26 p.m.
NED1 Entity disambiguation (via context triple) batch_69bde0b9f700819082b0e5171132d0f3 completed March 21, 2026, 12:05 a.m.
NEDg Description generation batch_69bde31735a481909d005e6c44e2f114 completed March 21, 2026, 12:15 a.m.
NED2 Entity disambiguation (via description) batch_69bde6d185088190b94580f53038d883 completed March 21, 2026, 12:31 a.m.
Created at: March 20, 2026, 1:11 p.m.