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