Dave is high. Dave is strong. Anne is thin. Anne is short. Bob is nice. Gary is poor. Gary is sad. If someone is not big then they are poor. If someone is not bad then they are smart. If someone is nice then they are wealthy. If someone is wealthy and not rough then they are quiet. If someone is poor and not big then they are dull. If someone is thin and short then they are rough. If someone is rough and not wealthy then they are sad. All smart people are kind. 
Anne is not sad.