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