<http://schema.org/image_url>
"http://media.mlive.com/detroit/photo/2013/10/-8343ae5e96b777ea.JPG"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.mlive.com/5628/gallery/body_of_missing_wsu_student_found_near_packard_plant/index.html>