<? xml version="1.0" ?>
<!-- top level comment -->
<root att1="val1" att2="val2">
  <!-- comment in root's body -->
  <child1 c1name="c1value">
  </child1>
  <!-- another root's body comment -->
  <child2>
    <grandchild21>
    </grandchild21>
  </child2>
  root's body
</root>