Sentence 1: In Brazilian music , the Dorian mode is formed from the Mixolydian mode , by the lowering of the former , thus being a minor version of the third .
Sentence 2: In Brazilian music , the Dorian mode from the Mixolydian mode is formed by the lowering of the former and is thus a small version of the third .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?