pan>
                                   <span class="identifier">s</span>  <span class="special">|</span> <span class="identifier">s</span>   <span class="identifier">s</span> <span class="identifier">m</span>            <span class="identifier">b</span>  <span class="special">|</span>                           
                                   <span class="identifier">m</span>  <span class="special">|</span> <span class="identifier">m</span>   <span class="identifier">m</span>              <span class="i