<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/11/15/cult_doctor_who_s6_07.jpg>
<http://www.digitalspy.com/tv/doctor-who/news/a436305/doctor-who-neil-gaimans-new-episode-to-feature-the-cybermen/>