<http://schema.org/image_url>
"http://media.cleveland.com/sports_impact/photo/zdeno-chara-jpg-f2ee07701db4d577.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cleveland.com/sports/index.ssf/2012/08/columbus_could_lose_nhl_all-st.html>