<http://schema.org/description>
"Northrop Grumman's tailless X-47B unmanned combat air system has been delivered to the U.S. Navy following a year of testing."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Business_News/Security-Industry/2011/12/22/US-Navy-receives-X-47B/UPI-17481324560474/>