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