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