<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x80/54cab617ac217_-_raku_kiln_banner_1010_de.jpg>
<http://www.popularmechanics.com/home/how-to-plans/how-to/a6262/offbeat-diy-projects/>