<http://schema.org/image_url>
"http://media.al.com/news_impact/photo/hurricane-arthurjpg-e3e6e09c49a12f0b.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/news/index.ssf/2014/07/check_out_the_space_station_vi.html>