[xsl] using every inside a predicate

Hi 

I am having trouble implementing a solution kindly offered on this list.

The following variable should return a sequence of names that only
appear in EVERY section.
 
        <xsl:variable name="ubiquitous-names"
                          select="distinct-values(sections/section/name
                          [not(contains(., 'new entry'))]
                          [every $s in sections/section satisfies
$s/name = .])" />

When tested on the XML below I get:

        <result>Kevin Bill Fred Ollie Harry</result>

Which is a list of distinct values, which I can get by:

        <xsl:variable name="ubiquitous-names"
                          select="distinct-values(sections/section/name
                          [not(contains(., 'new entry'))])" />

What I am after is:

        <result>Kevin Bill</result>

As these are the only names that appear in every section.

So  [every $s in sections/section satisfies $s/name = .] doesn't seem to
have any effect.

Can someone please point me in the right direction.

-------
XML
-------

<?xml version="1.0"?>
<sections>
        <section name="North">
                <name>Kevin</name>
                <name>Bill</name>
                <name>Fred</name>
                <name>Ollie</name>
                <name>Frank - new entry</name>
                <name>Bob - new entry</name>
        </section>
        <section name="South">
                <name>Fred</name>
                <name>Kevin</name>
                <name>Bill</name>
                <name>Frank - new entry</name>
                <name>Bob - new entry</name>
        </section>
        <section name="West">
                <name>Kevin</name>
                <name>Frank - new entry</name>
                <name>Bill</name>
                <name>Ollie</name>
                <name>Bob - new entry</name>
                <name>Fred</name>
        </section>
        <section name="East">
                <name>Harry</name>
                <name>Bob - new entry</name>
                <name>Bill</name>
                <name>Frank - new entry</name>
                <name>Kevin</name>
                <name>Ollie</name>
        </section>
</sections>
 
-----
XSL
-----

<?xml version="1.0"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
        <xsl:output indent="yes" method="xml"/>
        <xsl:strip-space elements="*"/>

<xsl:template match="/">

                <xsl:variable name="ubiquitous-names"
        
select="distinct-values(sections/section/name
                                          [not(contains(., 'new
entry'))]
                                          [every $s in sections/section
satisfies $s/name = .])" />

                <result>
                        <xsl:copy-of select="$ubiquitous-names" />
                </result>
</xsl:template>

Thanks.

--
Kevin

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