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