:0.04398em">z</span></span></span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord" style=""><span class="mord coloredeq eqo" style=""><span class="mord vbox" style=""><span class="thinbox" style=""><span class="rlap" style=""><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="inner"><span c