<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.digitalspy.com/tv/doctor-who/news/a444795/doctor-who-steven-moffat-on-2013-episodes-weve-gone-all-out/>