<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54d11216bd16a_-_drywall-corners-1107.jpg>
<http://www.popularmechanics.com/home/interior-projects/how-to/a2165/4225166/?click=pop_more>