<http://schema.org/description>
"Twitter today added another 70 locations to Local Trends, a subset of the service's trend tracking service that gives users a view of what's popular in their area at the time.  Twitter ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2011/04/12/twitter-adds-70-new-locations-to-trends/>