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