[
    {
        "id": "kinds-of-content",
        "original_id": "kinds-of-content",
        "children": [
            {
                "id": "metadata-content",
                "original_id": "metadata-content"
            },
            {
                "id": "flow-content",
                "original_id": "flow-content"
            },
            {
                "id": "sectioning-content",
                "original_id": "sectioning-content"
            },
            {
                "id": "heading-content",
                "original_id": "heading-content"
            },
            {
                "id": "phrasing-content",
                "original_id": "phrasing-content"
            },
            {
                "id": "embedded-content",
                "original_id": "embedded-content"
            },
            {
                "id": "interactive-content",
                "original_id": "interactive-content"
            },
            {
                "id": "palpable-content",
                "original_id": "palpable-content"
            }
        ]
    },
    {
        "id": "transparent-content-models",
        "original_id": "transparent-content-models"
    },
    {
        "id": "paragraphs",
        "original_id": "paragraphs"
    }
]