[{
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        "rel": "1",
        "class": "reference"
    },
    "children": [{
        "data": "\u0414\u043e\u043a\u0443\u043c\u0435\u043d\u0442",
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        "state": "closed"
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            "rel": 3,
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    "attr": {
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        "data-bin": "1",
        "class": "bin"
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}]