 class="n">j</span><span class="p">:</span>  
                <span class="k">continue</span>

            <span class="n">type1</span> <span class="o">=</span> <span class="n">labels</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
            <span class="n">type2</span> <span class="o">=</span> <span class="n">labels</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>

            <span class="k">if</span> <span class="n">val</span><span class="p">