Caban Coch Dam
E828715
Caban Coch Dam is a large stone-built dam in the Elan Valley of mid-Wales, forming part of the historic Elan Valley Reservoirs scheme that supplies water to Birmingham.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Caban Coch Dam canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T9769119 — 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: Caban Coch Dam Context triple: [Garreg Ddu Reservoir, near, Caban Coch Dam]
-
A.
Chirkey Dam
Chirkey Dam is a major arch dam and hydroelectric power station in Dagestan, Russia, known as the highest dam in the country and a key source of electricity in the North Caucasus region.
-
B.
Petenwell Dam
Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
-
C.
Nisramont Dam
Nisramont Dam is a hydroelectric and recreational dam in the Belgian Ardennes, forming a large reservoir on the Ourthe River near La Roche-en-Ardenne.
-
D.
Calanda Dam
Calanda Dam is a hydroelectric dam in Switzerland associated with the Calanda mountain region, used primarily for water storage and power generation.
-
E.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
- 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: Caban Coch Dam Target entity description: Caban Coch Dam is a large stone-built dam in the Elan Valley of mid-Wales, forming part of the historic Elan Valley Reservoirs scheme that supplies water to Birmingham.
-
A.
Chirkey Dam
Chirkey Dam is a major arch dam and hydroelectric power station in Dagestan, Russia, known as the highest dam in the country and a key source of electricity in the North Caucasus region.
-
B.
Petenwell Dam
Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
-
C.
Nisramont Dam
Nisramont Dam is a hydroelectric and recreational dam in the Belgian Ardennes, forming a large reservoir on the Ourthe River near La Roche-en-Ardenne.
-
D.
Calanda Dam
Calanda Dam is a hydroelectric dam in Switzerland associated with the Calanda mountain region, used primarily for water storage and power generation.
-
E.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
gravity dam ⓘ masonry dam ⓘ |
| architecturalStyle | Victorian ⓘ |
| basinCountry | Wales NERFINISHED ⓘ |
| constructionType | stone-built ⓘ |
| country | Wales ⓘ |
| creates | Caban Coch Reservoir NERFINISHED ⓘ |
| designedToResemble | natural waterfall ⓘ |
| hasAccess | Elan Valley Trail NERFINISHED ⓘ |
| hasFeature |
overflow spillway
ⓘ
valve tower ⓘ |
| heritageStatus | historic infrastructure ⓘ |
| impounds | River Elan NERFINISHED ⓘ |
| locatedIn |
Elan Valley
NERFINISHED
ⓘ
Powys NERFINISHED ⓘ mid-Wales NERFINISHED ⓘ |
| locatedInProtectedArea | Elan Valley Estate NERFINISHED ⓘ |
| locatedNear |
Elan Village
NERFINISHED
ⓘ
Rhayader NERFINISHED ⓘ |
| material | stone ⓘ |
| nearbyLandUse |
conservation area
ⓘ
recreation ⓘ |
| notableFor |
role in Birmingham water supply
ⓘ
scenic setting in Elan Valley ⓘ stone masonry construction ⓘ |
| operator | Dŵr Cymru Welsh Water NERFINISHED ⓘ |
| ownedBy | Dŵr Cymru Welsh Water NERFINISHED ⓘ |
| partOf |
Birmingham water supply system
ⓘ
Elan Valley Reservoirs NERFINISHED ⓘ Elan Valley dams NERFINISHED ⓘ Elan Valley water supply scheme NERFINISHED ⓘ |
| purpose | public water supply ⓘ |
| regionServed |
Birmingham conurbation
NERFINISHED
ⓘ
West Midlands NERFINISHED ⓘ |
| suppliesWaterTo | Birmingham NERFINISHED ⓘ |
| tourism | visitor attraction ⓘ |
| usedFor |
drinking water
ⓘ
flood control ⓘ water regulation ⓘ |
| watershed | River Wye catchment ⓘ |
| waterUse | municipal supply ⓘ |
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: Caban Coch Dam Description of subject: Caban Coch Dam is a large stone-built dam in the Elan Valley of mid-Wales, forming part of the historic Elan Valley Reservoirs scheme that supplies water to Birmingham.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.