[ { "time": 31.0, "subtask": "pick up the ice cube from ice bowl" }, { "time": 40.0, "subtask": "place the ice cube in glas cup" }, { "time": 0.0, "subtask": "open the fridge door" }, { "time": 12.0, "subtask": "pick up the lemon wedge from the fridge" }, { "time": 19.0, "subtask": "place the lemon wedge into the glass cup" } ]