<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Top_News/US/2012/12/22/Gun-buybacks-increase-in-SoCal/23331356204402/>
<http://www.upi.com/Top_News/US/2012/12/22/Gun-buybacks-increase-in-SoCal/UPI-23331356204402/?pvn=1>