group of children and adults in a martial arts training space

group of children and adults in a martial arts training space. Most are wearing martial arts uniforms (gis) in white and blue. Some adults are in casual clothing. They are on a yellow and blue mat in a gym-like room. The room has a high ceiling, exposed ductwork, and a brick wall along one side. Some of the children are practicing forward rolls on the mat. The others stand around the perimeter, either observing or preparing to participate. The camera remains stationary throughout the video.