er">S</span> <span class="special">|</span> <span class="identifier">S</span> <span class="identifier">S</span>     <span class="identifier">S</span>
                                    <span class="identifier">m</span> <span class="special">|</span> <span class="identifier">m</span> <span class="identifier">m</span> <span class="identifier">m</span> <span class="identifier">m</span>             <span class="identifier">M</span> <span class="special">|</span> <span class="identifier">M</span> <span class="i