<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cab87277420_-_roughpackage-300-md.jpg>
<http://www.popularmechanics.com/technology/gadgets/reviews/g1725/package-tips-for-shipping-companies/>