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