1<?xml version='1.0'?>
2<!DOCTYPE sxe SYSTEM "notfound.dtd" [
3<!ENTITY % incent SYSTEM "sxe.ent">
4%incent;
5]>
6<sxe id="elem1">
7 <elem1 attr1='first'>
8  <!-- comment -->
9  <elem2>
10   <elem3>
11    <elem4>
12     <?test processing instruction ?>
13    </elem4>
14   </elem3>
15  </elem2>
16 </elem1>
17</sxe>
18