<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/missourijpg-ce1b9951e3edd021.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/11/cbs_sports_top_10_defensive_pl.html>