Charlie is rough. Dave is blue. Gary is big. If someone is cold and not young then they are blue. If someone is rough and not young then they are cold. Big, young people are rough. If Charlie is not cold and Charlie is not smart then Charlie is rough. If someone is rough and not cold then they are white. If someone is not blue then they are not cold. If someone is big and not rough then they are white. If someone is not rough then they are big.
Charlie is smart.