<http://schema.org/headline>
"Postponed: Cee Lo Green, Flo Rida concert at American Airlines Center"^^<http://www.w3.org/2001/XMLSchema#string>
<http://popcultureblog.dallasnews.com/2012/07/postponed-cee-lo-green-flo-rida-concert-at-american-airlines-center.html/>