Complex sentence: David John Twardzik (born September 20,1950 in Hershey, Pennsylvania) is a former professional basketball player, a player he was a point guard in both the American Basketball Association (ABA) and the National Basketball Association (NBA).
Split into simpler sentences: David John Twardzik (born September 20,1950) is an American former professional basketball player. He was a point guard in both the American Basketball Association (ABA) and the National Basketball Association (NBA).