 class="w">      </span><span class="ss">n_sup</span><span class="w">       </span><span class="p">|</span><span class="w">
              </span><span class="p">|</span><span class="w">                  </span><span class="p">|</span><span class="w">    </span><span class="p">|</span><span class="w">                  </span><span class="p">|</span><span class="w">
              </span><span class="o">+</span><span class="o">--</span><span class="o">--</span><span class="o">--</span><span class="o">--</span>