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