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