{%- for item in include.data -%}
  {%- if forloop.first %}<ul>{% endif -%}
  {%- assign the_url = item.pages.first.url -%}
  {%- unless item.mainnav == false -%}
  <li>
    <a href="{{ the_url | relative_url }}"{% if include.current == the_url %} aria-current="location"{% endif %}><span>{{item.name}}</span></a>
  </li>
  {%- endunless -%}
  {%- if forloop.last %}</ul>{% endif -%}
{%- endfor -%}