Triple

T1049505
Position Surface form Disambiguated ID Type / Status
Subject Arriva UK Trains E22661 entity
Predicate operatesBrand P6092 FINISHED
Object Arriva Trains Northern
Arriva Trains Northern was a former British train operating company that provided regional and commuter rail services across Northern England.
 E137402 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: Arriva Trains Northern | Statement: [Arriva UK Trains, operatesBrand, Arriva Trains Northern]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Arriva Trains Northern
Context triple: [Arriva UK Trains, operatesBrand, Arriva Trains Northern]
  • A. Arriva UK Trains
    Arriva UK Trains is a major British train operating company that manages several passenger rail franchises and services across the United Kingdom.
  • 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. 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. Arriva Trains Wales
    Arriva Trains Wales was a former UK train operating company that provided passenger rail services across Wales and the English border regions from 2003 to 2018.
  • 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: Arriva Trains Northern
Triple: [Arriva UK Trains, operatesBrand, Arriva Trains Northern]
Generated description
Arriva Trains Northern was a former British train operating company that provided regional and commuter rail services across Northern England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Arriva Trains Northern
Target entity description: Arriva Trains Northern was a former British train operating company that provided regional and commuter rail services across Northern England.
  • A. Arriva UK Trains
    Arriva UK Trains is a major British train operating company that manages several passenger rail franchises and services across the United Kingdom.
  • 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. 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. Arriva Trains Wales
    Arriva Trains Wales was a former UK train operating company that provided passenger rail services across Wales and the English border regions from 2003 to 2018.
  • 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_69a493da02e081908c13ff5e02a0fe7a completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4bb7320f88190a8428946541df157 completed March 1, 2026, 10:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac7f29385c8190a42dc7dbac592221 completed March 7, 2026, 7:40 p.m.
NEDg Description generation batch_69ac7f69eb448190819e39ef62d0fd81 completed March 7, 2026, 7:41 p.m.
NED2 Entity disambiguation (via description) batch_69ac7fd648948190bc30a14b79bc6dca completed March 7, 2026, 7:43 p.m.
Created at: March 1, 2026, 7:42 p.m.