<http://schema.org/source_blog_url>
"http://highschoolsports.oregonlive.com"^^<http://www.w3.org/2001/XMLSchema#string>
<http://highschoolsports.oregonlive.com/news/article/-484207949894323383/live-updates-from-oregon-high-school-baseball-softball-state-championships-live-chat/>