<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/landon-donovan-271127b79c925c61.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2014/08/watch_all_57_of_landon_donovan.html>