<?xml version="1.0" encoding="UTF-8"?>
<!--    Sample from Zvon XSLT tutorial (www.zvon.org)   -->
<source>
    <chapter>First Chapter</chapter>
    <chapter>Second Chapter <chapter>Subchapter 1</chapter>
        <chapter>Subchapter 2</chapter>
    </chapter>
    <chapter>Third Chapter <chapter>Subchapter A</chapter>
        <chapter>Subchapter B <chapter>sub a</chapter>
            <chapter>sub b</chapter>
        </chapter>
        <chapter>Subchapter C</chapter>
    </chapter>
</source>
