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