Gary is furry. Gary is not green. Gary is not nice. Gary is quiet. Gary is rough. Gary is smart. Gary is young. If Gary is nice and Gary is not young then Gary is quiet. If Gary is nice then Gary is furry. If something is smart and quiet then it is furry. Green, smart things are nice. Nice, green things are furry. If something is green and not smart then it is not furry. Green things are not rough. If something is furry and not quiet then it is not nice.
Gary is not smart.