>XFailed attempt to tilt rapidly|XInitiate rapid tilt up[Initiate rapid tilt upqXInitiate rapid tilt downYInitiate rapid tilt downBXInitiate slow tilt up2XConclude slow tilt upXInitiate slow tilt down,0XConclude slow tilt down4XStand upXTransition back to supine%XInitiation of slow tilt up`0XConclusion of slow tilt upXInitiation of slow tilt down/XConclusion of slow tilt down8XStand upXTransition back to supine'XInitiation of rapid tilt upYConclusion of rapid tilt upXInitiation of rapid tilt downGYConclusion of rapid tilt dow