Assertion: hovercraft | /r/AtLocation | much subtle way
Facets:
value: more efficiently
type: MANNER
value: much more
type: DEGREE
Source sentences:
text: But where a helicopter balances its own weight (the force of gravity pulling it down) with a massive down-draft of air (pushing it back up again), a hovercraft works in a much more subtle way that allows it to use far less air, far more efficiently, so getting by with a much smaller engine and considerably less fuel.