Sentence 1: Billy ( September 25 , 1918 -- May 3 , 2011 ) whose friends called him `` William Pendry Bidelman '' , was an American astronomer .
Sentence 2: Billy Billy ( 25 September 1918 - 3 May 2011 ) , whose friends called him `` William Pendry Bidelman '' , was an American astronomer .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?