Claerwen Dam
E854780
Claerwen Dam is a large concrete gravity dam in mid-Wales, forming part of the Elan Valley reservoir system that supplies water to Birmingham.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Claerwen Dam canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T10160230 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Claerwen Dam Context triple: [Elan Valley, hasPart, Claerwen Dam]
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A.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
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B.
Saville Dam
Saville Dam is a large masonry dam in Barkhamsted, Connecticut, that creates the Barkhamsted Reservoir, a major water supply source for the Hartford area.
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C.
Derwent Dam
Derwent Dam is a large historic masonry dam in Derbyshire, England, best known for its role in World War II RAF "Dambusters" training and as a prominent feature of the Upper Derwent Valley.
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D.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
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E.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Claerwen Dam Target entity description: Claerwen Dam is a large concrete gravity dam in mid-Wales, forming part of the Elan Valley reservoir system that supplies water to Birmingham.
-
A.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
-
B.
Saville Dam
Saville Dam is a large masonry dam in Barkhamsted, Connecticut, that creates the Barkhamsted Reservoir, a major water supply source for the Hartford area.
-
C.
Derwent Dam
Derwent Dam is a large historic masonry dam in Derbyshire, England, best known for its role in World War II RAF "Dambusters" training and as a prominent feature of the Upper Derwent Valley.
-
D.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
E.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
- F. None of above. chosen
Statements (33)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Claerwen Dam Description of subject: Claerwen Dam is a large concrete gravity dam in mid-Wales, forming part of the Elan Valley reservoir system that supplies water to Birmingham.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.