<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.digitalspy.com/gaming/call-of-duty/news/a395281/black-ops-2-perks-pre-order-bonuses-announced-by-game/>