<http://schema.org/keywords>
"video"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.reuters.com/video/2013/03/19/lil-wayne-leaves-hospital-timberlake-lau?videoId=241736042&feedType=VideoRSS&feedName=Entertainment&videoChannel=3&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+reuters%2FUSVideoEntertainment+%28Video+%2F+US+%2F+Entertainment%29>