<http://schema.org/image_url>
"http://media.masslive.com/sports_impact/photo/monkey-rodeo-wilmington-blue-rocksjpg-e8d191145193a483.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.masslive.com/sports/index.ssf/2013/07/sports_doldrums_roundup_baron.html>