<?xml version="1.0" ?>
<?xml-stylesheet type="text/css" href="Classic.css"?>
<doc xmlns="urn:SampleLink"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     xml:lang="en">
 <para>An error has occurred.</para>
 <para>To see more information about the problem, please click
  <ref xlink:type="simple" xlink:href="RefFile_en.xml">here</ref>.
 </para>
 <para xml:lang="pl">Aby zobaczyć więcej informacji na temat tego problemu, 
  kliknij <ref xlink:type="simple" xlink:href="RefFile_pl.xml">tutaj</ref>.
 </para>
</doc>