<http://schema.org/thumbnail>
"http://yospace-cds1.reuters.com/u/resize~ad1~120x120/0/f/~image_jpeg~9999-1/1/m/1/4/l/b/07ij/reuters04?videoId=76243420"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.reuters.com/video/2014/01/10/west-virginia-chemical-spill-leaves?videoId=276388645>