caption: In this image in the center there are groups of people who are wearing shoes, and it seems that they are doing some exercises. And at the bottom there is floor, and on the right side of the image there is a stage and we could see curtains. On the stage there is one person who is doing exercise, and in the center there is railing, wall and on the left side of the image there is a screen. On the screen there is text, and at the top there is ceiling and we could see some lights and objects which are black in color and also there are objects.