<http://schema.org/image_url>
"http://media.nj.com/star-ledger/photo/2013/03/-af6f63c34e2d9493.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.nj.com/4504/gallery/taylor_swift_live_at_the_prudential_center/index.html>