<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Sports_News/2012/07/29/Ainslie-trails-in-bid-for-4th-Olympic-win/18591343582165/>
<http://www.upi.com/Sports_News/2012/07/29/Ainslie-trails-in-bid-for-4th-Olympic-win/UPI-18591343582165/>