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