<http://schema.org/headline>
"Amazon extends its free Super Saver shipping by two days, now ends December 18"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/media/2012/12/11/amazon-extends-its-free-super-saver-shipping-by-two-days-now-ends-december-18/>