span><span class="p">()</span>                                    <span class="c1"># Create variable A</span>
<span class="n">B_var</span><span class="o">=</span><span class="n">Var</span><span class="p">()</span>                                    <span class="c1"># Create variable B</span>
<span class="n">Compound</span><span class="p">(</span><span class="s2">&quot;#::&quot;</span><span class="p">,</span><span class="n">PList</span><span class="p">([</span><span class="n">A_var</span><span class="p">,</s