<http://schema.org/description>
"Way back in the heady days of 2009, a leaked document revealed that Twitter aimed to be &amp;quot;the pulse of the planet.&amp;quot; The world may have changed since then and Twitter's business ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2013/04/18/twitter-music/>