“The Stain That Became a Landmark”

{
  "input": {
    "prompt": " Photo: medium shot of a lived-in living room or hallway carpet/rug with a conspicuous dark stain near the center; the rest of the room is tidy, emphasizing the stain’s permanence. A pair of shoes is placed “by the stain” as if it’s a known reference point. Optional detail: a visitor’s foot hovering carefully to avoid it. Keep the stain ambiguous (coffee? wine? mystery), but clearly old and “set.” Color grading: everyday, documentary."
  }
}