<http://schema.org/url>
<http://www.joystiq.com/2012/12/24/black-ops-2-reigns-for-sixth-week-in-uk-to-capture-xmas-no-1-spo/>
<http://www.engadget.com/2012/12/24/black-ops-2-reigns-for-sixth-week-in-uk-to-capture-xmas-no-1-spo/>