<http://schema.org/description>
"Google has announced via its official Google I/O Google+ page and a blog post that the Google I/O conference has been extended to three days, June 27-29, 2012. This marks a change from ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2011/11/28/google-io-conference-extends-to-three-days-june-27-29-2012/>