Triple

T11812861
Position Surface form Disambiguated ID Type / Status
Subject Llyn Brenig E280916 entity
Predicate partOf P40 FINISHED
Object Brenig Reservoir and Alwen Reservoir complex
The Brenig Reservoir and Alwen Reservoir complex is a linked system of large upland water supply reservoirs and recreational sites in North Wales, known for their role in regional water management, outdoor activities, and wildlife conservation.
E947555 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: Brenig Reservoir and Alwen Reservoir complex | Statement: [Llyn Brenig, partOf, Brenig Reservoir and Alwen Reservoir complex]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Brenig Reservoir and Alwen Reservoir complex
Context triple: [Llyn Brenig, partOf, Brenig Reservoir and Alwen Reservoir complex]
  • A. Pen-y-garreg Reservoir
    Pen-y-garreg Reservoir is a scenic man-made lake in the Elan Valley of mid Wales, known for its historic stone dam and role in the region’s water supply system.
  • B. Clywedog Reservoir
    Clywedog Reservoir is a large man-made lake in mid-Wales, created for water regulation and recreation amid scenic upland surroundings.
  • C. Cantref Reservoir
    Cantref Reservoir is a man-made lake in the Brecon Beacons of South Wales that forms part of the water supply system for the city of Cardiff.
  • D. Nant-y-moch Reservoir
    Nant-y-moch Reservoir is a large upland man-made lake in the Cambrian Mountains of mid Wales, known for hydroelectric power generation and its remote, scenic landscape.
  • E. Tryweryn Reservoir
    Tryweryn Reservoir is an artificial lake in North Wales created in the 1960s to supply water to Liverpool, whose flooding of the village of Capel Celyn made it a lasting symbol of Welsh nationalist protest.
  • 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: Brenig Reservoir and Alwen Reservoir complex
Triple: [Llyn Brenig, partOf, Brenig Reservoir and Alwen Reservoir complex]
Generated description
The Brenig Reservoir and Alwen Reservoir complex is a linked system of large upland water supply reservoirs and recreational sites in North Wales, known for their role in regional water management, outdoor activities, and wildlife conservation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Brenig Reservoir and Alwen Reservoir complex
Target entity description: The Brenig Reservoir and Alwen Reservoir complex is a linked system of large upland water supply reservoirs and recreational sites in North Wales, known for their role in regional water management, outdoor activities, and wildlife conservation.
  • A. Pen-y-garreg Reservoir
    Pen-y-garreg Reservoir is a scenic man-made lake in the Elan Valley of mid Wales, known for its historic stone dam and role in the region’s water supply system.
  • B. Clywedog Reservoir
    Clywedog Reservoir is a large man-made lake in mid-Wales, created for water regulation and recreation amid scenic upland surroundings.
  • C. Cantref Reservoir
    Cantref Reservoir is a man-made lake in the Brecon Beacons of South Wales that forms part of the water supply system for the city of Cardiff.
  • D. Nant-y-moch Reservoir
    Nant-y-moch Reservoir is a large upland man-made lake in the Cambrian Mountains of mid Wales, known for hydroelectric power generation and its remote, scenic landscape.
  • E. Tryweryn Reservoir
    Tryweryn Reservoir is an artificial lake in North Wales created in the 1960s to supply water to Liverpool, whose flooding of the village of Capel Celyn made it a lasting symbol of Welsh nationalist protest.
  • 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_69d6ab26aae88190b2489efcb2a24234 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d8a5cba708819097467bb7aca7fc65 completed April 10, 2026, 7:24 a.m.
NED1 Entity disambiguation (via context triple) batch_69f131a01aa48190bf5a70759ac886f6 completed April 28, 2026, 10:16 p.m.
NEDg Description generation batch_69f141b31c9081908f19ff870f5f3c33 completed April 28, 2026, 11:24 p.m.
NED2 Entity disambiguation (via description) batch_69f14fdb39d48190828668fc535d7f6a completed April 29, 2026, 12:24 a.m.
Created at: April 8, 2026, 9:42 p.m.