{if isset($parent_content) && count($parent_content) > 0}
  <h4><a href="{$parent_content.CONTENT_LINK}">{$parent_content.CONTENT_TITLE}</a></h4>
{/if}
{if isset($sub_content) && count($sub_content) > 0}
  <ul>
    {foreach name=aussen item=content_data from=$sub_content}
    <li>
      <a href="{$content_data.CONTENT_LINK}">{$content_data.CONTENT_TITLE}</a>
    </li>
    {/foreach}
  </ul>
{/if}