<http://schema.org/image_url>
"http://media.mlive.com/baycitytimes/photo/2014/03/-1864b72b70a43070.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.mlive.com/4468/gallery/mural_exposes_at_bay_citys_dun/index.html>