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