<chapter>
<title>Introduction</title>
<para>The quick brown fox.</para>
</chapter>
<chapter>
<title>Some title</title>
<para>Some text.</para>
<section>
<title>A section</title>
<para>Some text.</para>
<section>
<title>A nested section</title>
<para>Some text.</para>
</section>
<section>
<title>Another nested section</title>
<formalpara><title>formal para title</title>
<para>Text of formal para.</para>
</formalpara>
</section>
<?sdop numbertitles="yes,yes,no"/>
<section>
<title>An unnumbered nested section</title>
<formalpara><title>formal para title</title>
<para>Text of formal para</para>
</formalpara>
</section>
</section>
</chapter>
<chapter>
<title>Another chapter</title>
<section>
<title>A section in a new chapter</title>
<para>Some text.</para>
<para>
The cat sat on the mat. The cat sat on the mat. The cat sat on the mat.
The cat sat on the mat. The cat sat on the mat. The cat sat on the mat.
The cat sat on the mat. The cat sat on the mat. The cat sat on the mat.
The cat sat on the mat. The cat sat on the mat. The cat sat on the
supercalifragilisticexpialidocious mat.
</para>
<para>
This is a paragraph that starts on a newline.
</para>
<para>    This paragraph starts with lots of spaces that follow
on       after       the         element, and there are also   
        plenty of spaces       within the sentence.   </para>
         
</section>
</chapter>
