[
  {
    "turn_id": "T900",
    "learner_raw": "홍OO(영문)",
    "learner_id": null,
    "prompt": "Describe",
    "utterance": "(녹음 누락)",
    "fluency": null,
    "accuracy": null
  },
  {
    "turn_id": "T901",
    "learner_id": "l0",
    "learner_raw": "학습자0",
    "prompt": "Greet",
    "utterance": "...",
    "fluency": 0,
    "accuracy": 0
  },
  {
    "turn_id": "T902",
    "learner_raw": "유창",
    "learner_id": "l2",
    "prompt": "Story",
    "utterance": "I had a wonderful weekend with my family",
    "fluency": 1,
    "accuracy": 1
  },
  {
    "turn_id": "T903",
    "learner_raw": "미등록학습자",
    "learner_id": null,
    "prompt": "Q",
    "utterance": "eee umm",
    "fluency": 0.1,
    "accuracy": null
  },
  {
    "turn_id": "T000",
    "learner_raw": "학습자0",
    "learner_id": "l0",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (0)",
    "fluency": 0.5,
    "accuracy": 0.5
  },
  {
    "turn_id": "T001",
    "learner_raw": "학습자1",
    "learner_id": "l1",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (1)",
    "fluency": 0.6,
    "accuracy": 0.6
  },
  {
    "turn_id": "T002",
    "learner_raw": "학습자2",
    "learner_id": "l2",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (2)",
    "fluency": 0.7,
    "accuracy": 0.7
  },
  {
    "turn_id": "T003",
    "learner_raw": "학습자3",
    "learner_id": "l3",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (3)",
    "fluency": 0.8,
    "accuracy": 0.8
  },
  {
    "turn_id": "T004",
    "learner_raw": "학습자4",
    "learner_id": "l4",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (4)",
    "fluency": 0.9,
    "accuracy": 0.9
  },
  {
    "turn_id": "T005",
    "learner_raw": "학습자0",
    "learner_id": "l0",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (5)",
    "fluency": 0.5,
    "accuracy": 0.5
  },
  {
    "turn_id": "T006",
    "learner_raw": "학습자1",
    "learner_id": "l1",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (6)",
    "fluency": 0.6,
    "accuracy": 0.6
  },
  {
    "turn_id": "T007",
    "learner_raw": "학습자2",
    "learner_id": "l2",
    "prompt": "Describe your weekend",
    "utterance": "I go to park yesterday (7)",
    "fluency": 0.7,
    "accuracy": 0.7
  }
]