Complex sentence: John Albert "Jack" Elway, Sr. (May 30,1931--April 15,2001) was an American football player and head coach; he was the father of John Elway, a Pro Football Hall of Fame quarterback.
Split into simpler sentences: John Albert "Jack" Elway, Sr. (May 30,1931--April 15,2001) was an American football player and head coach. He was the father of John Elway, a Pro Football Hall of Fame quarterback.