<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/startups/a11644/new-york-city-startup-normal-3d-printed-earbuds-17392337/>