Dave is high. Dave is strong. Gary is short. Gary is little. Harry is clever. Erin is rough. Erin is dull. If someone is not big then they are rough. If someone is not sad then they are wealthy. If someone is clever then they are nice. If someone is nice and not poor then they are smart. If someone is rough and not big then they are bad. All bad people are tiny. If someone is short and little then they are poor. If someone is poor and not nice then they are dull. If someone is dull then they are young. If someone is wealthy then they are kind. All kind people are quiet. All smart people are old. 
Gary is not young.