<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.popularmechanics.com/technology/gadgets/g1431/printshow-nyc-3d-printing-comes-to-fashion-medicine-and-art/>