<http://schema.org/mainEntityOfPage>
<http://www.upi.com/Business_News/Security-Industry/2011/08/22/Boeing-shows-UAS-swarm-technology/55701314017280/>
<http://www.upi.com/Business_News/Security-Industry/2011/08/22/Boeing-shows-UAS-swarm-technology/UPI-55701314017280/?st_rec=69821327674680>