<http://schema.org/image_url>
"http://media.al.com/sports_impact/photo/ala-western-carolina-2012jpg-03f190c323cec5dd.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/sports/index.ssf/2013/06/mike_slive_should_make_nick_sa.html>