"It's a challenge, so the girls on bottom has to hold the other sitting on her shoulders until they are tired.
Because the video is more long than 5 or 6 minutes, If they are tired and they have to take a break, they can get down and try again. The girl who sits on top of the shoulders can fix object put high (like a chandelier or curtains) or just walking.
It's important that the videos has no cuts inside and that the video close with the girls on shoulders."