<http://schema.org/image_url>
"http://media.oregonlive.com/nfl_impact/photo/super-bowl-2013-logojpg-3e8111bbedd0e601.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oregonlive.com/nfl/index.ssf/2013/02/super_bowl_live_updates_what_t.html>