<http://schema.org/image_url>
"http://media.al.com/business_impact/photo/robertsdale-walmart-supercenterjpg-fdfb4ce5615c4d6b.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.al.com/business/index.ssf/2014/06/walmart_seeks_200_full-_part-t.html>