<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/pilkingtonslidejpg-1e3ad370d7ec1236.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2014/03/lucky_no_13_south_alabama_jagu.html>