Triple

T20176237
Position Surface form Disambiguated ID Type / Status
Subject Severn Trent Water E492107 entity
Predicate parentCompany P254 FINISHED
Object Severn Trent plc
Severn Trent plc is a major UK-based water and wastewater services company that supplies and treats water for millions of customers across the Midlands and surrounding regions.
 E492107 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: Severn Trent plc | Statement: [Severn Trent Water, parentCompany, Severn Trent plc]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Severn Trent plc
Context triple: [Severn Trent Water, parentCompany, Severn Trent plc]
  • A. Severn Trent Water
    Severn Trent Water is a major UK water and wastewater services company supplying and managing water resources across the Midlands and surrounding regions.
  • B. Anglian Water
    Anglian Water is a major water and wastewater services company in England, serving much of the east of the country.
  • C. United Utilities
    United Utilities is a major British water and wastewater services company responsible for supplying and managing water infrastructure across North West England.
  • D. Dŵr Cymru Welsh Water
    Dŵr Cymru Welsh Water is a not-for-profit water and wastewater services company serving customers across Wales and parts of England.
  • E. Scottish Water
    Scottish Water is the publicly owned company responsible for providing water and wastewater services across Scotland.
  • 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: Severn Trent plc
Triple: [Severn Trent Water, parentCompany, Severn Trent plc]
Generated description
Severn Trent plc is a major UK-based water and wastewater services company that supplies and treats water for millions of customers across the Midlands and surrounding regions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Severn Trent plc
Target entity description: Severn Trent plc is a major UK-based water and wastewater services company that supplies and treats water for millions of customers across the Midlands and surrounding regions.
  • A. Severn Trent Water chosen
    Severn Trent Water is a major UK water and wastewater services company supplying and managing water resources across the Midlands and surrounding regions.
  • B. Anglian Water
    Anglian Water is a major water and wastewater services company in England, serving much of the east of the country.
  • C. United Utilities
    United Utilities is a major British water and wastewater services company responsible for supplying and managing water infrastructure across North West England.
  • D. Dŵr Cymru Welsh Water
    Dŵr Cymru Welsh Water is a not-for-profit water and wastewater services company serving customers across Wales and parts of England.
  • E. Scottish Water
    Scottish Water is the publicly owned company responsible for providing water and wastewater services across Scotland.
  • F. None of above.

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_69da6266c6888190bc1a3ecf24814d34 completed April 11, 2026, 3:01 p.m.
NER Named-entity recognition batch_69e668eb50a48190af7de53680ca2f5d completed April 20, 2026, 5:56 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0843e0c99c8190972a7120b8beaa87 completed May 16, 2026, 10:16 a.m.
NEDg Description generation batch_6a0844b2ef688190908b9ad5cf554907 completed May 16, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_6a0845e241048190ba7fb657d4dca3d7 completed May 16, 2026, 10:24 a.m.
Created at: April 11, 2026, 11:36 p.m.