<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/13/10/1280x719/gallery_gaming-half-life-5.jpg>
<http://www.digitalspy.com/gaming/news/a507306/half-life-3-is-not-in-development-says-voice-actor/>