<http://schema.org/image_url>
"http://media.al.com/birmingham-news/photo/2013/03/-3c10c5638805c694.JPG"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.al.com/4461/gallery/southide_birmingham_house_fire_march_20_2013/index.html>