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