<http://schema.org/image_url>
"http://media.al.com/birmingham-news/photo/2012/11/-43612039b7fa42bc.JPG"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.al.com/4461/gallery/pelham_christmas_tree_lighting_ceremony_nov_26_2012/index.html>