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