<?xml version='1.0'?>

<foo name="foo1"><t>1</t>
  <bar name="bar1">
    <foo name="foo2"><t>2</t>
      <bar name="bar2">
      </bar>
    </foo>
  </bar>
  <que name="que1">
    <foo name="foo3"><t>3</t>
      <que name="que2">
        <foo name="foo4"><t>4</t>
        </foo>
      </que>
    </foo>
  </que>
  <zoo name="zoo1">z1a<zoo name="zoo2">z2</zoo>z1b<zoo name="zoo3">z3</zoo>z1c</zoo>
  <zoo name="zoo4">z4</zoo>
</foo>

