Erin is blue. Erin is cold. Erin is red. Erin is smart. Erin is white. Erin is young. Gary is blue. Gary is red. Gary is rough. Gary is white. If Gary is red and Gary is smart then Gary is white. All smart, rough things are white. White things are smart. If Gary is rough then Gary is white. Red, young things are blue. Smart things are young. If Erin is young then Erin is rough. If something is young then it is rough.
Erin is not white.