Erin is quiet. Erin is not rough. Erin is not white. Gary is blue. Gary is quiet. Gary is rough. Gary is not white. If Gary is big then Gary is not blue. If someone is red and big then they are round. All big people are not quiet. If Gary is not quiet then Gary is round. If Gary is big then Gary is blue. If Gary is round then Gary is rough. If someone is not rough then they are blue. If someone is round and not blue then they are big.
Erin is not big.