<http://schema.org/url>
<http://www.businessweek.com/articles/2013-09-03/a-shrinking-u-dot-s-dot-trade-deficit-brought-to-you-by-fracking>
<http://www.bloomberg.com/bw/articles/2013-09-03/a-shrinking-u-dot-s-dot-trade-deficit-brought-to-you-by-fracking>