<http://schema.org/image_url>
"http://media.mlive.com/citizenpatriot/photo/2013/02/ray-weathers-2010jpg-f1b9857a24783b6a.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.mlive.com/4471/gallery/3-4-13_ray_weathers_through_the_years/index.html>