<http://schema.org/url>
<http://www.businessweek.com/articles/2014-01-16/at-the-vegas-gun-trade-show-its-the-year-of-the-woman>
<http://www.bloomberg.com/bw/articles/2014-01-16/at-the-vegas-gun-trade-show-its-the-year-of-the-woman>