Motion edit prompt

Group the main lower clapperboard body, its attached lower striped strip, and the hinge plate with rivets as one rigid base. From the closed starting pose, move this base upward with ease-in/ease-out timing while tipping it counterclockwise first; at the same time, rotate the hinged upper striped slate counterclockwise around the left hinge so it swings open and separates above the lower strip as a rigid piece. At the open peak, reverse quickly: swing the upper slate back down until it aligns flush with the lower strip, rotate the base back to level, then let the whole base drop slightly below where it sits in the provided SVG and rebound back to the closed level pose. Hold briefly at rest, then repeat the same open-and-snap-shut motion once more. Keep all parts fully visible, with divider lines and rivets moving only with their parent groups.