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