<http://schema.org/description>
"There's no shortage of apps that let you chat with your friends on mobile devices.  There's apps like GroupMe, WhatsApp, Kakao Talk, that appeal to people who want to talk to their ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2012/01/04/this-chat-app-has-something-the-others-dont-real-time-language-translation/>