<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/13/03/1280x886/gallery_tech-facebook-announcement.jpg>
<http://www.digitalspy.com/tech/news/a451274/facebook-to-make-search-more-social-on-network-with-graph-search/>