<http://schema.org/caption>
"X-47B is readied for launch along side an F/A-18 Hornet (Photo: Mass Communications Specialist Seaman Apprentice Alex Millar/US Navy)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/x-47b-manned-unmanned-deck-operations/33397/>