Human: Describe a depressing scene outside a cavern with stone, green moss, and debris. Assistant: 
A small mountain of stone debris blocks all passage to the south. Once part of the cavern's roof, the avalanche of stone fell unexpectedly upon the innocent people living below, shattering their homes and their lives. As though in defiant denial of the ancient destruction, thick green moss coats the stones in testimony to life's triumph over destruction.