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 the conductor of the group since 2003 and Sharon Northe has been President since 2017 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?