<http://schema.org/description>
"River Emergency Service, World War II. A patrol boat of the River Emergency Service returning from duty flies the gas signal GQH and a member of the crew signals for assistance be semaphore"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mediastorehouse.com/river-emergency-service-world-war-ii/print/4433893.html>