<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Sports_News/2006/03/06/UPI-Thoroughbred-Racing-Roundup/62501141651967/>
<http://www.upi.com/Sports_News/2006/03/06/UPI-Thoroughbred-Racing-Roundup/UPI-62501141651967/>