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