Assertion: hovercraft | /r/CapableOf | create an air cushion
Facets:
value: more efficiently than a helicopter
type: MANNER
Source sentences:
text: A hovercraft is an aircraft that moves thanks to the effect it produces when it throws air against the surface beneath it, creating an air cushion that allows it not to rub against the surface on which it moves.
text: Since they produce an air cushion more efficiently than a helicopter, they're cheaper to operate, simpler, and easier to maintain (safer too).