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File: Data.xml
<?xml version="1.0" encoding="UTF-8"?>
<employees>
<employee>
<FirstName>A</FirstName>
<LastName>B</LastName>
<Country>USA</Country>
</employee>
<employee>
<FirstName>C</FirstName>
<LastName>D</LastName>
<Country>USA</Country>
</employee>
<employee>
<FirstName>E</FirstName>
<LastName>F</LastName>
<Country>USA</Country>
</employee>
</employees>
File: Transform.xslt
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<h3>header</h3>
<xsl:for-each-group select="employees/employee"
group-by="Country">
<xsl:sort select="current-grouping-key()" />
<p>
Number of employees who live in:
<b>
<xsl:value-of
select="current-grouping-key()" />
</b>
is
<xsl:value-of select="count(current-group())" />
</p>
<xsl:result-document
href="{current-grouping-key()}.xml">
<employees>
<xsl:copy-of select="current-group()" />
</employees>
</xsl:result-document>
</xsl:for-each-group>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
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