/ol>
      </li>
  <li data-type="sect1">
    <a href="ch19.html#stage_three_and_four_understanding_and">Stages 3 and 4: Understanding and Commenting on a Change</a>
            <ol>
  <li data-type="sect2">
    <a href="ch19.html#commenting">Commenting</a>
  </li>
  <li data-type="sect2">
    <a href="ch19.html#understanding_the_state_of_a_change">Understanding the State of a Change</a>
  </li>
</ol>
      </li>
  <li data-type="sect1">
    <a href="ch19.html#stage_five_change_approvals_left_parent">Stage 