Read the following premise and answer if the hypothesis is true.
Cantref Reservoir is the middle of the three reservoirs in the Taff Fawr valley in Wales. It is owned by Welsh Water. It is located in the Brecon Beacons National Park, mostly in the Powys unitary authority area and within the historic county boundaries of Breconshire. Part of the south west corner is in the Rhondda Cynon Taff unitary authority area.
Hypothesis: Brecon Beacons National Park is in Wales.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
No
Yes.