<root>
<lists>
  <list>
     <L1subroot>
        <clists>
           <clist>
             <id>1</id>
             <name>xxx</name>
           </clist
           <clist>
            <id>2</id>
            <name>xxx</name>
           </clist>
        </clists>
     </subroot>
  </list>
  <list>
  </list>
</lists>
</root>