<http://schema.org/url>
<http://www.businessweek.com/articles/2013-11-18/trayvon-martin-renisha-mcbride-and-gun-control-four-blunt-points>
<http://www.bloomberg.com/bw/articles/2013-11-18/trayvon-martin-renisha-mcbride-and-gun-control-four-blunt-points>