<http://schema.org/mainEntityOfPage>
<http://blogs.wsj.com/speakeasy/2011/02/01/rihannas-s-and-m-video-looks-for-laughs-in-bondage/>
<http://blogs.wsj.com/speakeasy/2011/02/01/rihannas-s-and-m-video-looks-for-laughs-in-bondage/>