Bob is strong. Bob is big. Charlie is short. Charlie is small. Erin is quiet. Dave is rough. Dave is sad. If someone is not high then they are rough. If someone is not bad then they are wealthy. If someone is quiet then they are nice. If someone is nice and not poor then they are smart. If someone is rough and not high then they are dull. If someone is short and small then they are poor. If someone is poor and not nice then they are sad. All wealthy people are kind. 
Erin is not smart.