Try using the XSLT transformer to extract the xml element.
<xsl:output omit-xml-declaration="yes" indent="yes" />
<xsl:template match="/">
<xsl:copy copy-namespaces="no">
<xsl:apply-templates select="//Person" />
</xsl:copy>
</xsl:template>
<xsl:template match="@*|node()">
<xsl:copy copy-namespaces="no">
<xsl:apply-templates select="@*|node()" />
</xsl:copy>
</xsl:template>