<http://schema.org/image_url>
"http://media.al.com/entertainment_impact/photo/al-pacino-photojpg-d54e1e1516431de1.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/entertainment/index.ssf/2012/06/how_much_do_you_know_about_al.html>