<http://schema.org/image_url>
"http://media.cleveland.com/browns_impact/photo/ax074-091f-9jpg-515154a993a6cdf8.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cleveland.com/browns/index.ssf/2014/03/reaction_on_social_media_alex.html>