Triple

T13171798
Position Surface form Disambiguated ID Type / Status
Subject Maentwrog E312992 entity
Predicate hasNearbyFeature P350 FINISHED
Object Maentwrog hydroelectric power station
Maentwrog hydroelectric power station is a historic hydroelectric facility in North Wales that harnesses water from the nearby reservoirs and rivers to generate renewable electricity.
E1026403 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: Maentwrog hydroelectric power station | Statement: [Maentwrog, hasNearbyFeature, Maentwrog hydroelectric power station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Maentwrog hydroelectric power station
Context triple: [Maentwrog, hasNearbyFeature, Maentwrog hydroelectric power station]
  • A. Rheidol hydroelectric scheme
    The Rheidol hydroelectric scheme is a major hydroelectric power installation in Ceredigion, Wales, harnessing the River Rheidol to generate renewable electricity.
  • B. Capel Celyn
    Capel Celyn was a Welsh rural community in the Tryweryn Valley that became a symbol of Welsh nationalism after being controversially flooded in the 1960s to create a reservoir.
  • C. Dinorwig Power Station
    Dinorwig Power Station is a large pumped-storage hydroelectric power facility in Snowdonia, Wales, built inside a former slate quarry and known for providing rapid-response electricity to the UK grid.
  • D. Vyrnwy Dam
    Vyrnwy Dam is a historic stone-built dam in Powys, Wales, notable for creating Lake Vyrnwy and being one of the first large masonry dams in the United Kingdom.
  • E. Derwent hydropower scheme
    The Derwent hydropower scheme is a system of hydroelectric power stations and associated infrastructure that harnesses the flow of the River Derwent to generate renewable electricity.
  • 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: Maentwrog hydroelectric power station
Triple: [Maentwrog, hasNearbyFeature, Maentwrog hydroelectric power station]
Generated description
Maentwrog hydroelectric power station is a historic hydroelectric facility in North Wales that harnesses water from the nearby reservoirs and rivers to generate renewable electricity.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Maentwrog hydroelectric power station
Target entity description: Maentwrog hydroelectric power station is a historic hydroelectric facility in North Wales that harnesses water from the nearby reservoirs and rivers to generate renewable electricity.
  • A. Rheidol hydroelectric scheme
    The Rheidol hydroelectric scheme is a major hydroelectric power installation in Ceredigion, Wales, harnessing the River Rheidol to generate renewable electricity.
  • B. Capel Celyn
    Capel Celyn was a Welsh rural community in the Tryweryn Valley that became a symbol of Welsh nationalism after being controversially flooded in the 1960s to create a reservoir.
  • C. Dinorwig Power Station
    Dinorwig Power Station is a large pumped-storage hydroelectric power facility in Snowdonia, Wales, built inside a former slate quarry and known for providing rapid-response electricity to the UK grid.
  • D. Vyrnwy Dam
    Vyrnwy Dam is a historic stone-built dam in Powys, Wales, notable for creating Lake Vyrnwy and being one of the first large masonry dams in the United Kingdom.
  • E. Derwent hydropower scheme
    The Derwent hydropower scheme is a system of hydroelectric power stations and associated infrastructure that harnesses the flow of the River Derwent to generate renewable electricity.
  • 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_69d806ac3ee081909b2fd27d060aa974 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98c2f22b881908a0af3af0a0af971 completed April 10, 2026, 11:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6f5e5eacc8190ae39dcdb12c9b563 completed May 3, 2026, 7:14 a.m.
NEDg Description generation batch_69f6f6ba509c8190a99426ba4506d31f completed May 3, 2026, 7:18 a.m.
NED2 Entity disambiguation (via description) batch_69f6f812ae048190907b8def6b0d019c completed May 3, 2026, 7:24 a.m.
Created at: April 9, 2026, 9:13 p.m.