1<!DOCTYPE doc SYSTEM "doc.dtd"> 2<doc> 3<title>Document Title</title> 4<chapter> 5<title>Chapter Title</title> 6<section> 7<title>Section Title</title> 8<para>This is a test.</para> 9<note>This is a note.</note> 10</section> 11<section> 12<title>Another Section Title</title> 13<para>This is <emph>another</emph> test.</para> 14<note>This is another note.</note> 15</section> 16</chapter> 17</doc> 18