n class="o">!</span><span class="p">(</span><span class="nx">label</span><span class="w"> </span><span class="ow">in</span><span class="w"> </span><span class="nx">state</span><span class="p">))</span><span class="w"> </span><span class="p">{</span>
<span class="w">      </span><span class="nx">state</span><span class="p">[</span><span class="nx">label</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[]</span>
<span class="w">    </span><s