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{"subtask_index": 0, "subtask": "use the right arm to place a cut of bread into the plate."}
{"subtask_index": 1, "subtask": "use the left arm to place a cut of bread into the empty plate."}
{"subtask_index": 2, "subtask": "use the left arm to pick up out a cut of bread."}
{"subtask_index": 3, "subtask": "use the right arm to pick up out a cut of bread."}
{"subtask_index": 4, "subtask": "null."}