<li class="dropdown-submenu">
    <a href="#" tabindex="-1" data-token="Air-Date">Air-Date</a>
    <ul class="dropdown-menu">
        <li><a href="#" data-token="Air-Date">Air-Date</a></li>
        <li><a href="#" data-token="Air Date">Air Date</a></li>
        <li><a href="#" data-token="Air.Date">Air.Date</a></li>
        <li><a href="#" data-token="Air_Date">Air_Date</a></li>
    </ul>
</li>
