<?xml version="1.0" ?>
<!DOCTYPE myhtml [
<!-- This document will be invalid -
there is no declaration for the h1 element.
-->
<!ELEMENT myhtml ANY >
<!ELEMENT head ANY >
<!ELEMENT title ANY >
<!ELEMENT body ANY >
<!ELEMENT p ANY >
]>
<myhtml>
<head><title>
Simple example XML document
</title> </head>
<body>
<h1> Simple Example XML Document </h1>
<p> This is an example XML document, with a DTD defining the
syntax constraints preceding the markup. This document is consistent
with the rules in the DTD, so it should validate.
</p>
<p> Here is a second paragraph of text.
</p>
</body>
</myhtml>