<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/10/19/comics_the_thanos_imperative_1.jpg>
<http://www.digitalspy.com/movies/the-avengers/news/a379731/the-avengers-5-potential-storylines-for-a-sequel-spoilers/>