Get element value from XML with XSL-FO

Hello!!

I have a XML with an element named Question. I also have a XSL looking like this:

Code:

---

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
>

    <xsl:template match="@* | node()">
                <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
                        <fo:layout-master-set>
                                <fo:simple-page-master master-name="Letter" page-height="11in" page-width="8.5in">
                                        <fo:region-body region-name="only_region" margin="1in" background-color="#CCCCCC"/>
                                </fo:simple-page-master>
                        </fo:layout-master-set>
                        <fo:page-sequence master-reference="Letter">
                                <fo:flow flow-name="only_region">
                                        <fo:block text-align="center">???</fo:block>
                                </fo:flow>
                        </fo:page-sequence>
                </fo:root>
    </xsl:template>
</xsl:stylesheet>

---

In the fo:block I would like to get the value in element Question from the XML. How do I do this?