Triple

T5493730
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 158 E123762 entity
Predicate operator P179 FINISHED
Object Wessex Trains (past)
Wessex Trains was a former British train operating company in the UK that provided regional and local passenger rail services in the West Country and surrounding areas until its services were absorbed into other franchises.
 E524218 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: Wessex Trains (past) | Statement: [British Rail Class 158, operator, Wessex Trains (past)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Wessex Trains (past)
Context triple: [British Rail Class 158, operator, Wessex Trains (past)]
  • 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. Hull Trains (former)
    Hull Trains (former) was an open-access train operating company in the UK that previously ran services using British Rail Class 170 diesel multiple units.
  • D. South Western Railway
    South Western Railway is a zone of Indian Railways responsible for operating and managing rail services primarily across the state of Karnataka and parts of its neighboring regions.
  • E. South Western Railway
    South Western Railway is a major UK train operating company providing regional and long-distance passenger rail services across southwest London, Surrey, Hampshire, Dorset, Wiltshire, Devon, and surrounding areas.
  • 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: Wessex Trains (past)
Triple: [British Rail Class 158, operator, Wessex Trains (past)]
Generated description
Wessex Trains was a former British train operating company in the UK that provided regional and local passenger rail services in the West Country and surrounding areas until its services were absorbed into other franchises.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Wessex Trains (past)
Target entity description: Wessex Trains was a former British train operating company in the UK that provided regional and local passenger rail services in the West Country and surrounding areas until its services were absorbed into other franchises.
  • 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. Hull Trains (former)
    Hull Trains (former) was an open-access train operating company in the UK that previously ran services using British Rail Class 170 diesel multiple units.
  • D. South Western Railway
    South Western Railway is a zone of Indian Railways responsible for operating and managing rail services primarily across the state of Karnataka and parts of its neighboring regions.
  • E. South Western Railway
    South Western Railway is a major UK train operating company providing regional and long-distance passenger rail services across southwest London, Surrey, Hampshire, Dorset, Wiltshire, Devon, and surrounding areas.
  • 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_69bd464a2d908190869324ce176779c8 completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd9281a0148190bb7a8dae9c991b9c completed March 20, 2026, 6:31 p.m.
NED1 Entity disambiguation (via context triple) batch_69bf6c8fb5688190b29f27ce13324943 completed March 22, 2026, 4:14 a.m.
NEDg Description generation batch_69bf6d7d2ff48190acee9baab4d54ef2 completed March 22, 2026, 4:18 a.m.
NED2 Entity disambiguation (via description) batch_69bf6e62f03481908fbbeb931defcc05 completed March 22, 2026, 4:21 a.m.
Created at: March 20, 2026, 2:10 p.m.