Dave is strong. Dave is high. Harry is thin. Harry is little. Charlie is nice. Alan is dull. Alan is rough. If someone is not big then they are dull. If someone is not sad then they are wealthy. If someone is nice then they are kind. If someone is kind and not bad then they are smart. If someone is dull and not big then they are poor. If someone is thin and little then they are bad. If someone is bad and not kind then they are rough. All wealthy people are quiet. 
Charlie is not smart.