<http://schema.org/description>
"\r\n\r\nYouTube is adding a feature to its mobile app in November that will let users\u00A0add videos to their handsets to watch for a short period, even when they are unable to get an Internet ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2013/09/18/from-november-youtube-will-let-users-watch-videos-offline-in-its-app/>