Charlie is blue. Charlie is furry. Charlie is green. Charlie is red. Charlie is not rough. Charlie is white. Charlie is young. All rough people are blue. All red people are blue. If Charlie is young then Charlie is furry. If Charlie is not red then Charlie is rough. If someone is young and not red then they are green. If someone is furry and not rough then they are green. If someone is blue and not rough then they are white. If Charlie is red and Charlie is not white then Charlie is not young.
Charlie is green.