<http://schema.org/image_url>
"http://media.al.com/birmingham-news/photo/2013/08/-83dac18a3d18db52.JPG"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/08/uab_football_capsule_cfb_previ.html>