Assertion: helicopter | /r/HasProperty | useful
Facets:
value: especially
type: DEGREE
value: to future mars exploration
type: TRANSITIVE-OBJECT
value: extremely
type: DEGREE
value: for medical transport
type: PURPOSE
value: for tourism
type: PURPOSE
Source sentences:
text: As well as search and rescue, helicopters are useful for tourism, medical transport, fighting fires, aerial photography, military activity and more.
text: Helicopters are especially useful when there are disasters.
text: Helicopters are especially useful when there are disasters.
text: Helicopters and other types of aircraft could be extremely useful to future Mars exploration, especially if they're deployed in conjunction with robotic rovers on the planet's surface.