&lt;!DOCTYPE tip PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"&gt;
&lt;tip&gt;
&lt;para&gt;
If you tie your shoelaces, you're less likely to trip and 
fall down.
&lt;/para&gt;
&lt;/tip&gt;