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