Wonder Woman

A boy in a light green t-shirt sits at a desk in a classroom, repeatedly leaning back with his arms outstretched and mouth open in a wide yawn or shout, then sitting up smiling. Another boy in a dark jacket yawns widely while holding a pen over an open notebook. A third boy peeks around a corner with a slight smile. The sequence loops through these actions in a classroom setting with wooden desks, chairs, and windows.