human
Write a detailed description of a secluded cavern setting with a ceiling, strata, orifice, plants, and a ledge.
assistant
Layered strata form distinct ridges in the limestone walls and offer up nearly flawless impressions of plants and animals from eons past. High overhead in the cavern ceiling is a small orifice through which stray beams of light alternate with periods of total blackness as a dark shadow intermittently obscures the tiny opening. A narrow ledge juts out high above the floor along the far wall of the chamber.