<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/15/45/1280x869/gallery-tech-facebook-announcement-2.jpg>
<http://www.digitalspy.com/tech/virtual-reality/feature/a560303/oculus-rift-what-does-facebooks-acquisition-mean-for-virtual-reality/>