<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54ca973508ec3_-_gutter_fix_650x400_0210-synd.jpg>
<http://www.popularmechanics.com/home/news/g459/home-how-to-tips/>