<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54ca8ac95bc3f_-_cleaners-470-0609-88942251.jpg>
<http://www.popularmechanics.com/home/interior-projects/how-to/a4349/4320412/>