{
  "type": "root",
  "children": [
    {
      "type": "paragraph",
      "children": [
        {
          "type": "underline",
          "children": [
            {
              "type": "text",
              "value": "underlined text"
            }
          ]
        },
        {
          "type": "break",
          "children": []
        },
        {
          "type": "underline",
          "children": [
            {
              "type": "text",
              "value": "again some underlined text"
            }
          ]
        }
      ]
    },
    {
      "type": "paragraph",
      "children": [
        {
          "type": "underline",
          "children": [
            {
              "type": "text",
              "value": "another paragraph with underlined text"
            }
          ]
        }
      ]
    },
    {
      "type": "paragraph",
      "children": [
        {
          "type": "underline",
          "children": [
            {
              "type": "strong",
              "children": [
                {
                  "type": "text",
                  "value": "underlined and bold text"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}