Human: Write a detailed description of a depressing scene inside of a medieval basement with a ceiling, boards, and a floor. Assistant: 
It takes little keeness of perception to note the sad state of the floor, as vacancies in the boards are commonplace and in some places allow glimpses of the level below. Equally obvious is the cracking and waterstained plaster along the walls, devoid of paintings or ornamentation unless one counts the occasional protrustion of a rusty nail. Not as apparent is the state of the ceiling, as shadows and murky stains disguise its stability.