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