[
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  },
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  },
  {
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  },
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  },
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    "tester_id": "T-03",
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  },
  {
    "lot_id": "L2603A07",
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    "tester_id": "T-03",
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  },
  {
    "lot_id": "L2603B07",
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    "wafer_slot": 1,
    "tester_id": "T-11",
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  },
  {
    "lot_id": "L2603B08",
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  },
  {
    "lot_id": "L2603B09",
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  },
  {
    "lot_id": "L2603B10",
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  },
  {
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  },
  {
    "lot_id": "L2603B12",
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    "wafer_slot": 8,
    "tester_id": "T-12",
    "event": "material_lot_change"
  }
]