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