{% for key, value in res.iteritems() %}
    <header class="program-day-header">
        <hgroup>
          <h2>{{ key }}
            <a class="btn btn-default btn-xs" role="button"
               data-toggle="collapse" aria-expanded="false"
               aria-controls="sat-timeslots"
               href="#sat-timeslots">
              &#x2193;
            </a>
          </h2>
        </hgroup>
      </header>

    <div class="collapse in" id="sat-timeslots">
  {% for key2, value2 in value.iteritems() %}
    <article id="sat-ts-b0"
    class="program-timeslot-break"> <!-- sat-ts-b0 start -->
    <header class="program-timeslot-break-header">
    <hgroup>
    <h2>{{ key2 }}</h2>
    </hgroup>
    </header>
    {# conditional content #}
    {% if value2|count > 0 %}
    <div class="collapse in"
	 id="sat-ts0-sessions"> <!-- sat-ts0-sessions start -->
      {% for key3, value3 in value2.iteritems() %}
    <section id="sat-ts0-s0" class="program-session"> <!-- sat-ts0-s0 start -->
    <header class="program-session-header">
    <h2>{{ key3 }}</h2>
    </header>
    <a href="#" class="program-session-speaker">{{ value3['speaker'] }}</a>
    
<button class="btn btn-default btn-xs"
data-toggle="collapse" aria-expanded="false"
aria-controls="sat-ts0-s0-collapse"
data-target="#sat-ts0-s0-collapse">
Details
</button>
<div class="collapse in" id="sat-ts0-s0-collapse">
<p><span class="label label-default">{{ value3['room'] }}</span></p>

<p>{{ value3['desc'][0].decode('utf-8') }}</p>
</div>
</section> <!-- sat-ts0-s0 end -->
    </div> <!-- sat-ts0-sessions end -->
      {% endfor %}
    {% endif %}
    </article>
  {% endfor %}
{% endfor %}