<http://schema.org/image_url>
"http://media.al.com/entertainment_impact/photo/2012jubileeposter-paperjpg-75800e14382776c3.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/entertainment/index.ssf/2012/08/ann_calagaz_artwork_selected_f.html>