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