Sentence 1: It consists of two parts , Zemendorf and Stöttera , both of which lie on the River Wulka downstream from Pöttelsdorf and upstream from Antau .
Sentence 2: It consists of two parts , Zemendorf and Stöttera , which are both downstream from Pöttelsdorf and upstream of Antau on the Wulka .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?