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