>

<span class="sd">        item : int</span>
<span class="sd">            the item name</span>
<span class="sd">        sumLUtil : float</span>
<span class="sd">            the sum of utilities of a fuzzy item in database</span>
<span class="sd">        sumRUtil : float</span>
<span class="sd">            the sum of resting values of a fuzzy item in database</span>
<span class="sd">        elements : list</span>
<span class="sd">            list of elements contain tid,Utility and resting values of element