<http://schema.org/headline>
"Channel 4 to celebrate 20 years of rave with all-night party and documentary"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.factmag.com/2012/07/26/channel-4-to-broadcast-all-night-rave-annie-mac-and-grandmaster-flash-first-djs-confirmed/>