{"subtask_index": 0, "subtask": "use the left arm to place the steamer lid on the steamer."}
{"subtask_index": 1, "subtask": "use the right arm to lift the steamer closest to it."}
{"subtask_index": 2, "subtask": "use the left arm to place the steamer into the iron steamer pot in the middle."}
{"subtask_index": 3, "subtask": "use the right arm to lift the lid of the steamer."}
{"subtask_index": 4, "subtask": "use the right arm to place the steamer lid on the steamer."}
{"subtask_index": 5, "subtask": "use the left arm to lift the lid of the steamer."}
{"subtask_index": 6, "subtask": "use the right arm to place the steamer into the iron steamer pot in the middle."}
{"subtask_index": 7, "subtask": "use the left arm to lift the steamer closest to it."}
{"subtask_index": 8, "subtask": "null."}