</tr>
  <tr class="table_title"> 
    <td width="34%"><b>You write it as:</b></td>
    <td width="66%"><code><font face="Verdana, Arial, Helvetica, sans-serif">It 
      is refactored to:</font></code></td>
  </tr>
  <tr> 
    <td width="34%" class="table_cells"><code><span class=identifier>list_p</span><span class=special>(</span><span class=identifier>item</span><span class=special>, 
      </span><span class=identifier>delimiter</span><span class=special>)</span></code></td>
    <td width="66%" class="ta