Alan is high. Alan is huge. Anne is small. Anne is tiny. Dave is wealthy. Fiona is sad. Fiona is rough. If someone is not big then they are sad. If someone is not poor then they are nice. If someone is wealthy then they are clever. If someone is clever and not dull then they are kind. If someone is sad and not big then they are bad. All bad people are short. If someone is small and tiny then they are dull. If someone is dull and not clever then they are rough. If someone is rough then they are young. If someone is nice then they are smart. All smart people are quiet. All kind people are old. 
Dave is not old.