<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/13/160x160/5512f9cb5c77c-holiday-packing-tips-2-md.jpg>
<http://www.popularmechanics.com/technology/gadgets/reviews/g1725/package-tips-for-shipping-companies/>