{
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        }
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    },
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      }
    },
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        }
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    },
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      }
    },
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    },
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    },
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    },
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      }
    },
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        "right": 8
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
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      "material": "default"
    }
  ]
}