<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/13/10/cult-doctor-who-series-7-sneak-peek-16.jpg>
<http://www.digitalspy.com/fun/doctor-who/news/a519391/doctor-who-fans-petition-to-turn-empire-state-building-blue-for-50th/>