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