ass="n">tidSetJ</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_tidList</span><span class="p">[</span><span class="n">itemJ</span><span class="p">]</span>
                <span class="n">y1</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">tidSetI</span><span class="p">)</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</sp