<http://schema.org/mainEntityOfPage>
<http://blogs.wsj.com/digits/2013/12/01/amazons-bezos-shows-flying-drones-for-package-delivery/>
<http://blogs.wsj.com/digits/2013/12/01/amazons-bezos-shows-flying-drones-for-package-delivery/?mod=WSJ_hpp_MIDDLENexttoWhatsNewsForth>