Problem in Preceding node.

Hi All,
   Got another question regarding the preceding node.

with this input file,
 
<xml>
<a>
    <b>
        <c>Level 1</c>
    </b>
</a>
<d/>
<e/>
<a>
    <b>
        <a>
           <b>
              <c>Level 2</c>
           </b>
       </a>
    </b>
</a>
<d/>
<e/>
<a>
    <b>
        <c>Level 1</c>
    </b>
</a>
..........
</xml>

i want to output like this
<xml>
<sections>
   <section>
       <label>1</label>
          <title>Level 1</title>
    <d/>
    <e/>
   <section>
       <label>1.1</label>
          <title>Level 2</title>
    <d/>
    <e/>
    </section>
    </section>
   <section>
       <label>2</label>
          <title>Level 1</title>
    <d/>
    <e/>
   </section>
</sections>
</xml>

i hope that with this data, you understand my point.

thanks and regards.
aaron



		
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