[
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    "start_para": 1,
    "end_para": 4,
    "char_len": 51,
    "para_count": 4,
    "line_count": 4,
    "source_line_start": 1,
    "source_line_end": 6,
    "structure_counts": {
      "chapter_heading": 2,
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    },
    "text": "第一章\n\n张三走进客栈，天色将暮。李四抬头看他，目光如刀。\n\n第二章\n\n清晨，张三拾起铜令，心中不安。"
  }
]