{"subtask_index": 0, "subtask": "Dial the number with the left gripper"}
{"subtask_index": 1, "subtask": "End"}
{"subtask_index": 2, "subtask": "Lift the phone with the right gripper"}
{"subtask_index": 3, "subtask": "Grasp the phone with the right gripper"}
{"subtask_index": 4, "subtask": "Place the phone on the table with the right gripper"}
{"subtask_index": 5, "subtask": "null"}