<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Top_News/2008/04/19/Consultants-to-review-House-page-program/74881208612260/>
<http://www.upi.com/Top_News/2008/04/19/Consultants-to-review-House-page-program/UPI-74881208612260/>