<http://schema.org/description>
"Foursquare was founded on check-ins. When the original app emerged in 2009, it blossomed on the idea that you could broadcast your location and see where your friends were, all while ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2014/05/15/can-foursquares-new-swarm-app-save-check/>