Erin is big. Erin is blue. Erin is green. Erin is quiet. Erin is rough. Erin is smart. Erin is young. Gary is green. Gary is quiet. Gary is young. If something is big and young then it is quiet. If something is smart and green then it is quiet. If something is green and smart then it is quiet. Smart things are blue. If something is quiet then it is green. Green, quiet things are big.
Gary is not blue.