Problems validating a very simple xml file

$ cat meta.xml
<?xml version="1.0" encoding="UTF-8"?>
<office:document-meta xmlns:office="urn:oasis:names:tc:openoffice:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:openoffice:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" >
 <office:meta>
  <meta:generator>KOffice 1.3post</meta:generator>
 </office:meta>
</office:document-meta>

$ oasislint meta.xml
/k/meta.xml:4:34: error: text not allowed here

where oasislint is a script that does the following
/usr/java/j2re1.4.2_04/bin/java -jar $HOME/src/jing/bin/jing.jar -i /k/oo/office-schema-1.0-cd-1.rng $*

Text is allowed inside <meta:generator>, isn't it? Or do I read this wrongly?

<define name="office-meta-data" combine="choice">
    <element name="meta:generator">
        <ref name="string"/>
    </element>
</define>

"string" refers to <data type="string"/>, which I assume is a standard RelaxNG type...

-- 
David Faure, , sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).