Dave is big. Dave is huge. Bob is small. Bob is little. Erin is quiet. Anne is sad. Anne 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 wealthy. If someone is wealthy 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 wealthy then they are rough. All nice people are kind. 
Dave is not dull.