<http://schema.org/description>
"The US Navy announced that Washington has awarded Sikorsky Aircraft the contract to replace the Marine One helicopter fleet used to transport the President that will see a fleet of 21 VH92 aircraft delivered for presidential use by 2023."^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/sikorsky-marine-one-presidential-helicopter/31956/>