Erin is huge. Erin is strong. Gary is small. Gary is short. Bob is quiet. Anne is sad. Anne is poor. If someone is not big 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 rough then they are wealthy. If someone is sad and not big then they are dull. If someone is small and short then they are rough. If someone is rough and not kind then they are poor. All nice people are smart. 
Bob is not wealthy.