<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Business_News/2013/02/26/Home-prices-end-2012-with-strong-gains/17541361894501/>
<http://www.upi.com/Business_News/2013/02/26/Home-prices-end-2012-with-strong-gains/UPI-17541361894501/>