<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Sports_News/2006/07/12/LeBron-James-signs-three-year-extension/64531152750160/>
<http://www.upi.com/Sports_News/2006/07/12/LeBron-James-signs-three-year-extension/UPI-64531152750160/>