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