<http://schema.org/headline>
"U.S. Navy's \"warfighter game-changer\" railgun set for sea tests"^^<http://www.w3.org/2001/XMLSchema#string>
<http://in.reuters.com/video/2014/04/21/us-navys-warfighter-game-changer-railgun?videoId=312663450&videoChannel=105>