<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Top_News/US/2013/07/24/Poll-Economy-remains-top-problem/14761374671395/>
<http://www.upi.com/Top_News/US/2013/07/24/Poll-Economy-remains-top-problem/UPI-14761374671395/?rel=35751376917217>