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