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