xsl list item writes over the label?

I am trying to use a list and the list-item is writing
over the list-label.  Any ideas?

<?xml version='1.0' encoding='UTF-8'?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
exclude-result-prefixes="fo">
<xsl:output method="html" encoding="ASCII"/>
 
 <xsl:template match="/">
	<fo:root
xmlns:fo="http://www.w3.org/1999/XSL/Format"/>
	<fo:layout-master-set/>
	<fo:simple-page-master margin-right="2.5cm"
margin-left="2.5cm" margin-bottom="2cm"
margin-top="1cm" page-width="21cm"
page-height="29.7cm" master-name="mailer"/>
	<fo:region-body margin-top="3cm"/>
	<fo:region-before extent="3cm"/>
	<fo:region-after extent="1.5cm"/>
	<fo:page-sequence master-reference="mailer"/>
	<fo:flow flow-name="xsl-region-body"/>
	<fo:list-block/>
	<fo:list-item/>
	<fo:list-item-label/>
	<fo:block/>* 
	<fo:list-item-body/>
	<fo:block/>Volvo 
	<fo:list-item/>
	<fo:list-item-label/>
	<fo:block/>* 
	<fo:list-item-body/>
	<fo:block/>Saab 
</xsl:template>


		
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