pan><span class="n">r</span><span class="p">)</span> <span class="o">==</span> <span class="mi">6</span><span class="p">]</span>

            <span class="k">for</span> <span class="n">ring</span> <span class="ow">in</span> <span class="n">possible_phenyl</span><span class="p">:</span>
                <span class="c1"># Phenyl group should have only one (0 for benzene) member whose</span>
                <span class="c1"># neighbors are not two carbons and one hydrogen</span>
                <span class="n"