<http://schema.org/mainEntityOfPage>
<http://blogs.wsj.com/washwire/2013/12/09/biden-to-speak-at-d-c-memorial-service-for-mandela/>
<http://blogs.wsj.com/washwire/2013/12/09/biden-to-speak-at-d-c-memorial-service-for-mandela/?mod=WSJBlog>