I would risk to say it works based on assigning information weight to words, number of non repeating and the way they are related and then filter top down.<p>I did try it with a link I particularly like<p><a href="http:&#x2F;&#x2F;multivax.com&#x2F;last_question.html" rel="nofollow">http:&#x2F;&#x2F;multivax.com&#x2F;last_question.html</a><p>with the following response.<p>{&quot;1&quot;:&quot;nor could anyone for the day had long since passed zee prime knew when any man had any part of the making of a universal ac&quot;,&quot;2&quot;:&quot;zee prime&#x27;s mentality was guided into the dim sea of galaxies and one in particular enlarged into stars&quot;,&quot;3&quot;:&quot;he gave no further thought to dee sub wun whose body might be waiting on a galaxy a trillion light-years away or on the star next to zee prime&#x27;s own&quot;,&quot;4&quot;:&quot;the universal ac said man&#x27;s original star has gone nova&quot;,&quot;5&quot;:&quot;the universal ac interrupted zee prime&#x27;s wandering thoughts not with words but with guidance&quot;}}