<http://schema.org/image_url>
"http://media.al.com/entertainment_impact/photo/ruffner-sign-by-russell-helmsjpg-576beedb6817b9b2.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/entertainment/index.ssf/2014/04/ruffner_mountain_center_offers.html>