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