Hand-querns the size of courtyards

{
  "input": {
    "prompt": " Illustration or staged photo concept: an enormous circular grinding setup like an oversized millstone plaza, with dozens of laborers pushing long wooden beams to rotate a huge stone disk over limestone rubble. Convey scale by including a supervisor on a small platform and baskets of crushed stone turning into fine sand. Dusty atmosphere, repetitive labor, slight satirical tone without modern anachronisms."
  }
}