<http://schema.org/description>
"Circle February 9, 2011 on your calendars, folks. That&amp;#39;s the day Valve confirmed it will be releasing Portal 2, the anticipated sequel to the original surprise hit."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.maximumpc.com/mark-your-calendar-valve-sets-release-date-for-portal-2/>