Cantref Reservoir
E707950
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cantref Reservoir canonical | 1 |
| Llwyn-on Reservoir | 1 |
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | reservoir ⓘ |
| basinCountry | United Kingdom ⓘ |
| catchmentArea | River Taff catchment ⓘ |
| country | Wales ⓘ |
| environment | upland moorland surroundings ⓘ |
| hasAccess | minor roads from A470 ⓘ |
| hasFeature | earth embankment dam ⓘ |
| hasUse |
angling
ⓘ
recreational walking ⓘ |
| isPartOf | Cardiff water supply system NERFINISHED ⓘ |
| locatedIn |
Brecon Beacons
NERFINISHED
ⓘ
Brecon Beacons National Park NERFINISHED ⓘ South Wales NERFINISHED ⓘ Taff Fawr valley NERFINISHED ⓘ |
| locatedNear |
Beacons Reservoir
NERFINISHED
ⓘ
Llwyn-on Reservoir NERFINISHED ⓘ Merthyr Tydfil NERFINISHED ⓘ |
| operator | Dŵr Cymru Welsh Water NERFINISHED ⓘ |
| partOf | Taff Fawr reservoir system NERFINISHED ⓘ |
| protectedArea | Brecon Beacons National Park NERFINISHED ⓘ |
| purpose |
drinking water storage
ⓘ
public water supply ⓘ |
| region | Powys NERFINISHED ⓘ |
| suppliesWaterTo | Cardiff NERFINISHED ⓘ |
| watercourse | River Taff NERFINISHED ⓘ |
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: Cantref Reservoir Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Llwyn-on Reservoir