<http://schema.org/image_url>
"http://media.silive.com/advance/photo/2013/04/-77416c882f2c4503.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://photos.silive.com/4499/gallery/psal_high_school_baseball_petrides_vs_msit/index.html>