{
  "operation": {
    "type": "choice",
    "instructions": "Which operation moves this phone task forward?",
    "criteria": {
      "TAP": "tap a control on screen",
      "TYPE": "type text into a field",
      "SCROLL": "scroll the screen",
      "BACK": "go back to the previous screen",
      "WAIT": "wait for the screen to settle",
      "DONE": "the goal is already achieved, do nothing"
    }
  },
  "done": {
    "type": "noul",
    "instructions": "Is the phone task complete?"
  }
}