<?xml version="1.0"?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<article xmlns="http://docbook.org/ns/docbook">
  <para>You can use <ulink url="some:namespaces">some:namespaces</ulink> by using a colon in the pagename.</para>
</article>
