Sentence 1: The Beatles ' biographer , Philip Norman , wrote that Charles Sutcliffe was a heavy drinker and physically cruel to his wife , which the young Sutcliffe had witnessed .
Sentence 2: Charles Sutcliffe , the Beatles ' biographer , wrote that Philip Norman was a heavy drinker and physically cruel to his wife , which was observed by the young Sutcliffe .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?