human
Please generate a detailed description of a depressing scene inside a tunnel mine with a runner, red marble, channels, and floor.
assistant
This tunnel exudes an air of formality partly created by the illusion that a giant runner covers the floor. Polished granite is bordered on either side by a red marble strip that edges shallow channels where the walls meet the floor. Neither the marble nor the granite does much to deaden the heavy footsteps of the Dwarves who travel this corridor.