Sentence 1: The main plains of the prefecture is plain of Pozar in the north and the vast plain of Giannitsà in the southeastern part of the county .
Sentence 2: The main level of the prefecture is the plain of Pozar in the north and the vast plain of Giannitsà in the southeastern part of the county .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?