<http://schema.org/description>
"It's well known that Twitter doesn't provide a robust search product that lets you find tweets older than six or seven days.  That could be because the company is focused on the real-time ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/socialmedia/2012/02/16/gnip-launches-thirty-day-replay-becomes-twitters-first-authorized-reseller-of-data/>