<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/15/45/980x490/landscape-1446581149-pmx0410096a.jpg>
<http://www.popularmechanics.com/home/how-to-plans/how-to/a5623/how-to-build-a-floating-wall-shelf-with-plans/>