<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x160/54cafd6eea211_-_estwing-english-pattern-claw-hammer-de.jpg>
<http://www.popularmechanics.com/technology/gadgets/g1752/gifts-for-the-do-it-yourselfer/>