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