Asbestos in NSW

{% set item = item|default({
  "parentText": "Asbestos",
  "parentUrl": "#",
  "parentId": "id",
  "navitems": [
    {
      "text": "Level 2",
      "url": "#",
      "currentPage": false
    },
    {
      "text": "Level 2",
      "url": "#",
      "currentPage": false
    },
    {
      "text": "Level 2",
      "url": "#",
      "currentPage": false,
      "navitems": [
        {
          "text": "Level 3",
          "url": "#",
          "currentPage": true
        },
        {
          "text": "Level 3",
          "url": "#",
          "currentPage": false
        },
        {
          "text": "Level 3",
          "url": "#",
          "currentPage": false
        }
      ]
    },
    {
      "text": "Level 2",
      "url": "#",
      "currentPage": false
    },
    {
      "text": "Level 2",
      "url": "#",
      "currentPage": false
    }
  ]
}
) %}

<nav class="nsw-sidenav" aria-labelledby="{{item.parentId}} side navigation">
  <div class="nsw-sidenav__header">
    <h2 id="{{item.parentId}}" class="nsw-sidenav__heading">
      <a href="{{item.parentUrl}}" class="nsw-sidenav__heading-link">{{item.parentText}}</a></h2>
  </div>
  <ul class="nsw-sidenav__list nsw-sidenav__list--level-1 m-0 p-0">
    {% for data in item.navitems %}
      <li class="nsw-sidenav__list-item mt-0 {% if data.navitems %} has-active-children {% endif %}">
        <a href="{{data.url}}" class="nsw-sidenav__link {% if data.currentPage %} is-current {% endif %}">
          {{data.text}}
        </a>
        {% if data.navitems %}
        <ul class="nsw-sidenav__list nsw-sidenav__list--level-2 m-0 p-0">
          {% for children in data.navitems %}
            <li class="nsw-sidenav__list-item mt-0 {% if children.navitems %} has-active-children {% endif %}">
              <a href="{{children.url}}" class="nsw-sidenav__link {% if children.currentPage %} is-current {% endif %}">
                {{children.text}}
              </a>
              {% if children.navitems %}
              <ul class="nsw-sidenav__list nsw-sidenav__list--level-3 m-0 p-0">
                {% for innerChildren in children.navitems %}
                  <li class="nsw-sidenav__list-item mt-0 {% if innerChildren.navitems %} has-active-children {% endif %}">
                    <a href="{{innerChildren.url}}" class="nsw-sidenav__link {% if innerChildren.currentPage %} is-current {% endif %}">
                      {{innerChildren.text}}
                    </a>
                  </li>
                {% endfor %}
              </ul>
              {% endif %}
            </li>
          {% endfor %}
        </ul>
        {% endif %}
      </li>
    {% endfor %}
  </ul>
</nav>