Bob is not quiet. Bob is red. Bob is not round. Fiona is blue. Fiona is cold. Fiona is green. Fiona is round. Gary is cold. Gary is green. Gary is round. Harry is cold. Harry is round. If Bob is green then Bob is quiet. If something is blue then it is green. Round, cold things are blue. Quiet things are red. If something is round then it is blue. If something is quiet then it is not round. All round, green things are red. If something is red and not green then it is not quiet.
Bob is round.