<http://schema.org/about>
"Sarah Palin once challenged Al Gore to a debate on climate change but then took her offer back. Next Monday, the world will be treated to an actual debate between another prominent climate change denier and a famous climate change activist when"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/robert-kennedy-and-don-blankenship-to-debate-mtr-climate-this-week.html>