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