<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/13/14/640x320/landscape_david-tennant-matt-smith.jpg>
<http://www.digitalspy.com/tv/doctor-who/news/a498735/doctor-who-steven-moffat-on-50th-anniversary-we-cant-do-11-doctors/>