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