<http://schema.org/description>
"F8, Facebook's biggest event of the year is here, and with it a whole slew of new features. After several days of anticipation, the social network super giant has officially announced ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2011/09/22/facebook-announces-at-f8/>