<http://schema.org/headline>
"Cold War Subs Adapt to 21st Century Wars With Tube Next-Gen Missiles, Torpedos, Bots: Live at the Sea-Air-Space Expo"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/technology/gadgets/a4251/4255092/>