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Formal Language:

Sigma KEE - GliderPlane

KB Term:

滑翔机

Relationships
Parents	飞机	Any Vehicle which is capable of AirTransportation. Note that this class covers both fixed-wing aircraft and helicopters.
	无动力车辆	A Vehicle that lacks a powerComponent. It coasts like a glider or skateboard, thus deriving its power from the potential energy of gravity, or by the power of its agent, as in a bicycle.