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