Alan is strong. Alan is big. Dave is small. Dave is thin. Harry is smart. Bob is rough. Bob is poor. If someone is not huge then they are rough. If someone is not dull then they are quiet. If someone is smart then they are nice. If someone is nice and not sad then they are wealthy. If someone is rough and not huge then they are bad. If someone is small and thin then they are sad. If someone is sad and not nice then they are poor. All quiet people are kind. 
Alan is bad.