<?xml version="1.0"?> 
<doc>
  <side att="view"><!-- This is the side comment -->text-in-side<?s-pi side ?></side>
  <begin bat="top"><?a-pi some data?>
  <!-- This is the 2nd comment -->
  text-in-begin
  <inner blat="blob">
    inner-text
    <!-- This is the 3rd comment -->
    <sub latte="glub">subtext</sub>
  </inner>
  text-in-begin2
  </begin>
</doc>