group of individuals outdoors, seemingly involved in some sort of traditional or cultural activity

group of individuals outdoors, seemingly involved in some sort of traditional or cultural activity. Several people are wearing black outfits and appear to be performing movements or actions on a wet, grassy area. Other individuals stand around observing. There is a building nearby. The video is shot from a slightly elevated perspective, giving a view of the entire scene. The video is filmed with a vertically aligned smartphone.