Triple

T19370944
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 365 E484533 entity
Predicate laterOperator P5677 FINISHED
Object South Eastern Trains
South Eastern Trains was a British train operating company that ran commuter and regional passenger services in southeast England in the early 2000s.
 E1372669 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 Eastern Trains | Statement: [British Rail Class 365, laterOperator, South Eastern Trains]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Eastern Trains
Context triple: [British Rail Class 365, laterOperator, South Eastern Trains]
  • A. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • B. Virgin Trains
    Virgin Trains was a British train operating company under Richard Branson’s Virgin Group brand that ran long-distance passenger rail services in the UK.
  • C. North West Trains
    North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
  • D. Virgin Trains East Coast
    Virgin Trains East Coast was a former UK train operating company that ran long-distance intercity passenger services on the East Coast Main Line between London and major cities in northern England and Scotland.
  • E. Great Western Trains
    Great Western Trains was a British train operating company that ran passenger rail services in western England and South Wales before being rebranded as First Great Western.
  • 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 Eastern Trains
Triple: [British Rail Class 365, laterOperator, South Eastern Trains]
Generated description
South Eastern Trains was a British train operating company that ran commuter and regional passenger services in southeast England in the early 2000s.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Eastern Trains
Target entity description: South Eastern Trains was a British train operating company that ran commuter and regional passenger services in southeast England in the early 2000s.
  • A. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • B. Virgin Trains
    Virgin Trains was a British train operating company under Richard Branson’s Virgin Group brand that ran long-distance passenger rail services in the UK.
  • C. North West Trains
    North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
  • D. Virgin Trains East Coast
    Virgin Trains East Coast was a former UK train operating company that ran long-distance intercity passenger services on the East Coast Main Line between London and major cities in northern England and Scotland.
  • E. Great Western Trains
    Great Western Trains was a British train operating company that ran passenger rail services in western England and South Wales before being rebranded as First Great Western.
  • 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_69d8e8d305088190ad13571532aa454c completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e619b09ef08190a8b420316c0b8eb3 completed April 20, 2026, 12:18 p.m.
NED1 Entity disambiguation (via context triple) batch_6a072419c4ec8190931c1918450f2a83 completed May 15, 2026, 1:48 p.m.
NEDg Description generation batch_6a0725c32c4c8190bb29a764695cd245 completed May 15, 2026, 1:55 p.m.
NED2 Entity disambiguation (via description) batch_6a0726ea260c8190b97e2b18fde36272 completed May 15, 2026, 2 p.m.
Created at: April 10, 2026, 1:35 p.m.