<http://schema.org/url>
<http://www.ydr.com/politics-national/2012/10/parry-and-thrust-a-look-at-the-history-of-u-s-presidential-debates/>
<http://archive.ydr.com/politics-national/2012/10/parry-and-thrust-a-look-at-the-history-of-u-s-presidential-debates/>