<http://schema.org/source_blog_url>
"http://highschoolsports.mlive.com"^^<http://www.w3.org/2001/XMLSchema#string>
<http://highschoolsports.mlive.com/news/article/1628879399598806551/its-coming-mlives-football-game-of-the-week-poll-returns-aug-11/>