Bob is cold. Bob is quiet. Bob is white. Fiona is cold. Fiona is quiet. Fiona is red. Fiona is not round. Gary is cold. Gary is red. Gary is round. Round, red things are cold. If something is round and young then it is nice. All white, cold things are round. All round things are nice. If something is not nice and not quiet then it is cold. If something is cold and not nice then it is red. If something is quiet and not cold then it is young. If something is cold and not red then it is round.
Bob is not white.