ial">,</span> <span class="identifier">tuple_list_of</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="number">2</span><span class="special">)(</span><span class="number">2</span><span class="special">,</span> <span class="number">5</span><span class="special">)(</span><span class="number">6</span><span class="special">,</span> <span class="number">6</span><span class="special">)(</span><span class="number">5</span><span class="special">,</span> <sp