<http://schema.org/duration>
"PT0H04M08S"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cbsnews.com/videos/get-free-stuff/?lumiereId=50092719&videoId=67429970-8bdf-11e2-9400-029118418759&cbsId=6845360&site=cbsnews>