<http://schema.org/url>
<http://www.joystiq.com/2014/03/21/seen-gdc-2014-the-1987-pc-version-of-quadrilateral-cowboy/>
<http://www.engadget.com/2014/03/21/seen-gdc-2014-the-1987-pc-version-of-quadrilateral-cowboy/>