<http://schema.org/headline>
"Obama campaign says president&amp;#39;s event in Winter Park, Fla., later today has been cancelled in light of Colorado shooting."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.breakingnews.com/item/2012/07/20/obama-campaign-says-presidents-event-in-winter-park-fla-later-toda/>