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