Check occurence XSLT

I want to check occurrence of certain text. Below is my xslt:

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://ift.tt/tCZ8VR">
<xsl:output method="xml" version="1.0"
encoding="UTF-8" indent="yes"/>

<xsl:template match="/">

<!-- Notify PANTONE - If YES -->
<xsl:if test="contains(xmlreport/PageInfo/PageAttribute/PageColor,'PANTONE')">
<PantonePage><note>Yes</note></PantonePage>
</xsl:if>

<!-- Notify PANTONE - If NO -->
<xsl:if test="not(contains(xmlreport/PageInfo/PageAttribute/PageColor,'PANTONE'))">
<PantonePage><note>No</note></PantonePage>
</xsl:if>

</xsl:template>
</xsl:stylesheet>

My desire output should be either:

<pantone>Yes</pantone>

or

<pantone>No</pantone>

In the original XML, PANTONE might be PANTONE Red U, PANTONE Green U. When tested the above XSLT, the answer is always NO.