<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/12/10/980x551/gallery_gaming_halo_4_multiplayer_screen_2.jpg>
<http://www.digitalspy.com/gaming/halo/news/a436766/halo-4-standalone-multiplayer-ruled-out-by-microsoft/>