Sentence 1: The most important rivers of the district are the Willkanuta on the right border of the district and the Sallqa Mayu , one of its western tributaries .
Sentence 2: The most important rivers of the district are the Willkanuta on the western border of the district and the Sallqa Mayu , one of its right-wing tributaries .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?