<http://schema.org/headline>
"Curiosity rover processes a pinch of ground-up gray rock on Mars - @AP"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.breakingnews.com/item/2013/02/26/curiosity-rover-processes-a-pinch-of-ground-up-gray-rock-on-mars-ap/>