>        :rtype: dict</span>

<span class="sd">        &quot;&quot;&quot;</span>

        <span class="n">candidateToFrequentList</span> <span class="o">=</span> <span class="p">{}</span>
        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_Database</span><span class="p">:</span>
            <span class="n">dictionary</span> <span class="o">=</span> <span class="p">{</span><span class="nb">frozenset</span>