<cont xmlns="urn:state-lists">

  <l>

    <leaf1>aa</leaf1>

    <leaf2>10</leaf2>

    <lcont>

      <leaf3/>

      <l2>

        <leaf4>aa</leaf4>

        <leaf5>aa</leaf5>

      </l2>

    </lcont>

  </l>

  <l>

    <leaf1>b</leaf1>

    <leaf2>20</leaf2>

    <lcont>

      <l2>

        <leaf5>bb</leaf5>

      </l2>

    </lcont>

  </l>

  <ll>abab</ll>

  <ll>baba</ll>

  <l/>

  <l/>

  <ll>abab</ll>

  <ll>baba</ll>

</cont>