Question: The two children of Cassius Marcellus Clay Sr. and Odessa Grady Clay was a three-time World Heavyweight Champion and who?
Sentence (from "The Soul of a Butterfly"): The Soul of a Butterfly is the autobiography of Muhammad Ali, born Cassius Marcellus Clay Jr., a former heavyweight boxer who was a three time World Heavyweight Champion and is the greatest heavyweight of all time.
Relevant evidence: No