human
Please a gloomy scene outside a swamp with grass, mire, water, and mud.
assistant
The wartlike clumps of grass rising from the mire look solid, but the mud they conceal sucks at the feet of anything that moves, no matter how careful its tread. As the only alternative is wading through the reeking water surrounding the tussocks, even the treacherous grass seems preferable. Something moving beneath the water's oily surface sends up bubbles occasionally, though how anything thrives in water so choked with filth is a mystery.