&lt;!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"&gt;
&lt;para&gt;
&lt;productname class='trade'&gt;Frobozz&lt;/productname&gt;: it's not
just for breakfast anymore.
&lt;/para&gt;