<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Sports_News/2013/09/24/Venus-Williams-beats-Victoria-Azarenka-at-Pan-Pacific-Open/35871380026097/>
<http://www.upi.com/Sports_News/2013/09/24/Venus-Williams-beats-Victoria-Azarenka-at-Pan-Pacific-Open/UPI-35871380026097/?rel=93601380116184>