In Ciherang, Indonesia, a transparent, cylindrical plastic bucket is positioned on a reddish-brown tiled floor

In Ciherang, Indonesia, a transparent, cylindrical plastic bucket is positioned on a reddish-brown tiled floor. The bucket is approximately two-thirds full with a two-phase substance. The bottom layer, comprising about one-quarter of the total liquid volume, consists of a dark, opaque, greenish-black liquid. Above this, a thick, bright yellowish-green foam forms the upper layer, extending to roughly two-thirds the height of the container. The foam displays irregular peaks and variations in bubble size. Small streaks and droplets of a darker green liquid are present on the foam's surface and adhere to the inner wall of the plastic container. The background behind the bucket is dark and out of focus, with a faint, blurry pattern visible in the upper left. No individuals or specific actions are depicted.