<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/10/20/ustv_the_big_bang_theory_cast_2.jpg>
<http://www.digitalspy.com/tv/the-big-bang-theory/news/a429529/buzz-aldrin-to-make-big-bang-theory-cameo/>