<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/11/16/cult_doctor_who_elisabeth_sladen_tom_baker_1.jpg>
<http://www.digitalspy.com/tv/doctor-who/news/a396078/doctor-who-david-tennant-tops-us-favourite-doctor-poll/>