<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Top_News/US/2012/05/16/Crews-work-to-contain-Arizona-wildfires/49861337175763/>
<http://www.upi.com/Top_News/US/2012/05/16/Crews-work-to-contain-Arizona-wildfires/UPI-49861337175763/>