Dave is big. Dave is strong. Bob is little. Bob is short. Alan is clever. Anne is rough. Anne is bad. If someone is not high then they are rough. If someone is not dull then they are nice. If someone is clever then they are wealthy. If someone is wealthy and not sad then they are smart. If someone is rough and not high then they are poor. If someone is poor then they are tiny. All tiny people are thin. If someone is little and short then they are sad. If someone is sad and not wealthy then they are bad. If someone is bad then they are young. If someone is young then they are energetic. If someone is nice then they are kind. If someone is kind then they are quiet. All quiet people are wealthy. If someone is smart then they are experienced. All experienced people are old.
Alan is not old.