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