Triple

T6521952
Position Surface form Disambiguated ID Type / Status
Subject London–Aberdeen rail corridor E151204 entity
Predicate historicalOperator P2834 FINISHED
Object East Coast (train operating company)
East Coast was a British train operating company that ran long-distance passenger services on the East Coast Main Line between London and Scotland from 2009 to 2015 under public ownership.
 E605988 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: East Coast (train operating company) | Statement: [London–Aberdeen rail corridor, historicalOperator, East Coast (train operating company)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: East Coast (train operating company)
Context triple: [London–Aberdeen rail corridor, historicalOperator, East Coast (train operating company)]
  • A. Southeastern (train operating company)
    Southeastern is a British train operating company providing passenger rail services across southeast London, Kent, and parts of East Sussex.
  • B. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • 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
    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.
  • E. Southern (train operating company)
    Southern is a British train operating company that runs commuter and regional rail services across parts of South London, Surrey, Sussex, and the South Coast of England.
  • 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: East Coast (train operating company)
Triple: [London–Aberdeen rail corridor, historicalOperator, East Coast (train operating company)]
Generated description
East Coast was a British train operating company that ran long-distance passenger services on the East Coast Main Line between London and Scotland from 2009 to 2015 under public ownership.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: East Coast (train operating company)
Target entity description: East Coast was a British train operating company that ran long-distance passenger services on the East Coast Main Line between London and Scotland from 2009 to 2015 under public ownership.
  • A. Southeastern (train operating company)
    Southeastern is a British train operating company providing passenger rail services across southeast London, Kent, and parts of East Sussex.
  • B. Northern Trains
    Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
  • 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
    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.
  • E. Southern (train operating company)
    Southern is a British train operating company that runs commuter and regional rail services across parts of South London, Surrey, Sussex, and the South Coast of England.
  • 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_69c687f522748190b3058405553cdabd completed March 27, 2026, 1:36 p.m.
NER Named-entity recognition batch_69c6ad95c2c88190b800aaaa73f99210 completed March 27, 2026, 4:17 p.m.
NED1 Entity disambiguation (via context triple) batch_69c6d5204e78819082bf991c2ece09df completed March 27, 2026, 7:06 p.m.
NEDg Description generation batch_69c6d6aba9688190ada4f921768e314e completed March 27, 2026, 7:12 p.m.
NED2 Entity disambiguation (via description) batch_69c6d830ed6c8190a39126d97a5246d3 completed March 27, 2026, 7:19 p.m.
Created at: March 27, 2026, 1:45 p.m.