<http://schema.org/content_source_name>
"Internal"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/11/12/text-message-breakups/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+mashable%2Ftech+%28Mashable+%C2%BB+Tech%29>