Assertion: glider | /r/CapableOf | remain airborne
Facets:
value: for hours
type: TEMPORAL
Source sentences:
text: Once launched, gliders try to gain height using thermals, ridge lift, lee waves or convergence zones and can remain airborne for hours.
text: Once launched, gliders try to gain height using thermals, ridge lift, lee waves or convergence zones and can remain airborne for hours.