Assertion: glider | /r/CapableOf | make small changes
Facets:
value: in its buoyancy
type: OTHER
value: to sink
type: PURPOSE
value: to float
type: PURPOSE
Source sentences:
text: The way the glider works is it makes small changes in its buoyancy to either sink or float, and one of the things that all underwater gliders have is wings - just like gliders in the air.