Sentence 1: The Irfon defines the northern limit of the Mynydd Epynt area between Llanwrtyd Wells and Builth Wells .
Sentence 2: The Irfon defines the northern border of Builth - Wells - area between Llanwrtyd - Wells and Mynydd - Epynt .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?