<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/space/telescopes/g1552/7-awesome-astronomical-sights-you-can-study-with-just-binoculars/>