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