retaining entity declarations while converting from on

Hi:

I have an input XML file with DOCTYPE entity declarations. I am
preprocessing this data using XSLT and converting it back to the same
xml.

So my input looks like this:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE example[
<!ENTITY spoon.jpg SYSTEM "spoon.jpg">
]>

<houseware>

......

</houseware>

My XSLT looks like this:

<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:fn="http://www.w3.org/2005/xpath-functions">
	<xsl:output method="xml"  encoding="utf-8" indent="yes"/>

	<xsl:template match="@*|node()">
		<xsl:copy>
			<xsl:apply-templates select="@*|node()"/>
		</xsl:copy>
	</xsl:template>
	
</xsl:stylesheet>


My output looks like this:

<?xml version="1.0" encoding="utf-8"?>
<houseware>

......

</houseware>

How do I retain those doctype entity declarations in my xslt?

Thanks in advance for all your help.