Harry is huge. Harry is high. Fiona is tiny. Fiona is short. Alan is wealthy. Erin is bad. Erin is poor. If someone is not strong then they are bad. If someone is not dull then they are quiet. If someone is wealthy then they are smart. If someone is smart and not rough then they are kind. If someone is bad and not strong then they are sad. All sad people are thin. If someone is tiny and short then they are rough. If someone is rough and not smart then they are poor. If someone is poor then they are young. If someone is quiet then they are clever. All clever people are nice. All kind people are old. 
Alan is not old.