{
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    {
      "pdf_file": "sample_hierarchy_1.pdf",
      "pages": [
        {
          "page_number": 1,
          "blocks": [
            {
              "text": "Document Title",
              "level": "H1",
              "bbox": {
                "left": 50.0,
                "top": 50.0,
                "right": 550.0,
                "bottom": 100.0
              }
            },
            {
              "text": "Introduction Section",
              "level": "H2",
              "bbox": {
                "left": 50.0,
                "top": 120.0,
                "right": 450.0,
                "bottom": 160.0
              }
            },
            {
              "text": "This is the introductory paragraph that provides background information about the document. It contains multiple sentences explaining the context and purpose of the content.",
              "level": "Body",
              "bbox": {
                "left": 50.0,
                "top": 170.0,
                "right": 550.0,
                "bottom": 250.0
              }
            },
            {
              "text": "Main Content Section",
              "level": "H2",
              "bbox": {
                "left": 50.0,
                "top": 270.0,
                "right": 450.0,
                "bottom": 310.0
              }
            },
            {
              "text": "Subsection A",
              "level": "H3",
              "bbox": {
                "left": 70.0,
                "top": 330.0,
                "right": 400.0,
                "bottom": 360.0
              }
            },
            {
              "text": "This subsection contains detailed information about topic A. The content is organized hierarchically for better readability and structure.",
              "level": "Body",
              "bbox": {
                "left": 70.0,
                "top": 370.0,
                "right": 550.0,
                "bottom": 450.0
              }
            },
            {
              "text": "Subsection B",
              "level": "H3",
              "bbox": {
                "left": 70.0,
                "top": 470.0,
                "right": 400.0,
                "bottom": 500.0
              }
            },
            {
              "text": "Further elaboration on topic B follows here. This demonstrates how hierarchical structure helps organize complex information.",
              "level": "Body",
              "bbox": {
                "left": 70.0,
                "top": 510.0,
                "right": 550.0,
                "bottom": 570.0
              }
            },
            {
              "text": "Conclusion",
              "level": "H2",
              "bbox": {
                "left": 50.0,
                "top": 590.0,
                "right": 350.0,
                "bottom": 630.0
              }
            },
            {
              "text": "In conclusion, this document has demonstrated the importance of proper document hierarchy. Structured documents are easier to parse, understand, and process automatically.",
              "level": "Body",
              "bbox": {
                "left": 50.0,
                "top": 640.0,
                "right": 550.0,
                "bottom": 720.0
              }
            }
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        }
      ]
    },
    {
      "pdf_file": "sample_hierarchy_2.pdf",
      "pages": [
        {
          "page_number": 1,
          "blocks": [
            {
              "text": "Research Paper: Machine Learning",
              "level": "H1",
              "bbox": {
                "left": 50.0,
                "top": 40.0,
                "right": 550.0,
                "bottom": 90.0
              }
            },
            {
              "text": "Abstract",
              "level": "H2",
              "bbox": {
                "left": 50.0,
                "top": 110.0,
                "right": 350.0,
                "bottom": 150.0
              }
            },
            {
              "text": "Machine learning is a subset of artificial intelligence that focuses on enabling computer systems to learn from data. This paper provides a comprehensive overview of modern ML techniques.",
              "level": "Body",
              "bbox": {
                "left": 50.0,
                "top": 160.0,
                "right": 550.0,
                "bottom": 240.0
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            },
            {
              "text": "1. Introduction",
              "level": "H2",
              "bbox": {
                "left": 50.0,
                "top": 260.0,
                "right": 400.0,
                "bottom": 300.0
              }
            },
            {
              "text": "1.1 Background",
              "level": "H3",
              "bbox": {
                "left": 70.0,
                "top": 320.0,
                "right": 400.0,
                "bottom": 360.0
              }
            },
            {
              "text": "The field of machine learning has grown exponentially over the past decade. Novel algorithms and abundant data have enabled unprecedented advancements.",
              "level": "Body",
              "bbox": {
                "left": 70.0,
                "top": 370.0,
                "right": 550.0,
                "bottom": 440.0
              }
            },
            {
              "text": "1.2 Problem Statement",
              "level": "H3",
              "bbox": {
                "left": 70.0,
                "top": 460.0,
                "right": 400.0,
                "bottom": 500.0
              }
            },
            {
              "text": "Despite the progress made, several challenges remain in the field of machine learning. This work addresses key limitations in current approaches.",
              "level": "Body",
              "bbox": {
                "left": 70.0,
                "top": 510.0,
                "right": 550.0,
                "bottom": 580.0
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            }
          ]
        }
      ]
    },
    {
      "pdf_file": "sample_hierarchy_3.pdf",
      "pages": [
        {
          "page_number": 1,
          "blocks": [
            {
              "text": "Technical Documentation",
              "level": "H1",
              "bbox": {
                "left": 40.0,
                "top": 30.0,
                "right": 560.0,
                "bottom": 80.0
              }
            },
            {
              "text": "Installation Guide",
              "level": "H2",
              "bbox": {
                "left": 40.0,
                "top": 100.0,
                "right": 400.0,
                "bottom": 140.0
              }
            },
            {
              "text": "Prerequisites",
              "level": "H3",
              "bbox": {
                "left": 60.0,
                "top": 160.0,
                "right": 350.0,
                "bottom": 195.0
              }
            },
            {
              "text": "Before beginning the installation process, ensure you have the following requirements met. Operating system compatibility and necessary dependencies must be verified.",
              "level": "Body",
              "bbox": {
                "left": 60.0,
                "top": 205.0,
                "right": 560.0,
                "bottom": 280.0
              }
            },
            {
              "text": "System Requirements",
              "level": "H4",
              "bbox": {
                "left": 80.0,
                "top": 300.0,
                "right": 400.0,
                "bottom": 335.0
              }
            },
            {
              "text": "Minimum: 4GB RAM, 2GHz processor. Recommended: 8GB RAM, modern multi-core processor with SSD.",
              "level": "Body",
              "bbox": {
                "left": 80.0,
                "top": 345.0,
                "right": 560.0,
                "bottom": 400.0
              }
            },
            {
              "text": "Installation Steps",
              "level": "H3",
              "bbox": {
                "left": 60.0,
                "top": 420.0,
                "right": 350.0,
                "bottom": 455.0
              }
            },
            {
              "text": "Follow these numbered steps in order to complete the installation successfully. Each step builds on the previous one.",
              "level": "Body",
              "bbox": {
                "left": 60.0,
                "top": 465.0,
                "right": 560.0,
                "bottom": 520.0
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            }
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        }
      ]
    }
  ]
}