<http://schema.org/image_url>
"http://media.mlive.com/flint-journal/photo/2012/10/-dd04a5ea1c06eefd.JPG"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.mlive.com/4466/gallery/out_of_tent_city_in_flint/index.html>