Anne is blue. Bob is red. Erin is red. Fiona is blue. If Anne is blue then Anne is not nice. If Anne is nice then Anne is not young. Red things are cold. If Fiona is blue then Fiona is not nice. All red things are not nice. If something is blue then it is white. If something is cold then it is young. If Bob is not red and Bob is not cold then Bob is white.
Bob is not white.