<http://schema.org/thumbnail>
"http://yospace-cds1.reuters.com/u/resize~ad1~120x120/0/f/~image_jpeg~9999-1/1/m/1/u/i/e/s8xa/reuters04?videoId=57928227"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.reuters.com/video/2013/03/21/obama-views-dead-sea-scrolls?videoId=241767307&videoChannel=117764>