<http://schema.org/description>
"YouTube has adjusted its ranking algorithm to include the time a video was watched, saying it will mean &amp;quot;less clicking&amp;quot; and &amp;quot;more watching.&amp;quot;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Top_News/US/2012/10/12/YouTube-changes-video-ranking-system/UPI-41601350082500/>