Triple

T16933261
Position Surface form Disambiguated ID Type / Status
Subject London–Leeds E410764 entity
Predicate historicalOperator P2834 FINISHED
Object 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.
 E1242414 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: Virgin Trains East Coast | Statement: [London–Leeds, historicalOperator, Virgin Trains East Coast]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Virgin Trains East Coast
Context triple: [London–Leeds, historicalOperator, Virgin Trains East Coast]
  • A. 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.
  • B. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • C. Northern Rail
    Northern Rail is a British train operating company providing regional and commuter rail services across Northern England.
  • D. Hull Trains
    Hull Trains is an open-access British train operating company that runs long-distance passenger services primarily between London King's Cross and Hull and other destinations in East Yorkshire.
  • E. 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.
  • 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: Virgin Trains East Coast
Triple: [London–Leeds, historicalOperator, Virgin Trains East Coast]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Virgin Trains East Coast
Target entity description: 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.
  • A. 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.
  • B. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • C. Northern Rail
    Northern Rail is a British train operating company providing regional and commuter rail services across Northern England.
  • D. Hull Trains
    Hull Trains is an open-access British train operating company that runs long-distance passenger services primarily between London King's Cross and Hull and other destinations in East Yorkshire.
  • E. 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.
  • 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_69d886c886688190967be07322597ac9 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3cf2714b08190a2524d5d9578cc87 completed April 18, 2026, 6:36 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00d45c32a08190970137790d08f499 completed May 10, 2026, 6:54 p.m.
NEDg Description generation batch_6a00d51835c48190b1a37de6ac25ceaa completed May 10, 2026, 6:57 p.m.
NED2 Entity disambiguation (via description) batch_6a00d59b96108190a0e55f01529a0b64 completed May 10, 2026, 6:59 p.m.
Created at: April 10, 2026, 5:30 a.m.