Sentence 1: Since 2003 , Sharon Northe has been the head of the group , since 2017 Heather Weaver has been President .
Sentence 2: Heather Weaver has been head of the group since 2003 and since 2017 Sharon Northe has been President of the Group .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?