<?xml version="1.0"?> 
<a>  
  <b att="hey">
    <c att="these"/>
    <d>
       <e/>
       <f att="should"/>
    </d>
    <g>
       <h>
           <i/>
           <j att="not"/>
       </h>
    </g>
  </b>
  <k>
    <l>
      <m att="show"/>
      <n att="up"/>
    </l>
    <o att="in"/>
    <p att="the output"/>
  </k>
</a>
