<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/12/50/640x320/landscape_odd-sewerman-style-1.png>
<http://www.digitalspy.com/fun/news/a445503/thames-water-sewermen-create-gangnam-style-parody-video/>