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