<http://schema.org/description>
"BlackBerry recently started to push sponsored content to some of its external beta testers, but after users started to notice, the Canadian company has decided to set the record straight. ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/gadgets/2014/03/04/blackberry-confirms-sponsored-content-bbm-channels-promises-ads-bbm-chats-respect-user-privacy/>