Q: Counting Elements

What does this stylesheet produce?

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns="http://www.w3.org/1999/xhtml"
                version="2.0">

  <xsl:output method="text"/>

  <xsl:param name="doc">
    <doc>
      <p>One</p>
      <p>Two</p>
      <p>Three</p>
    </doc>
  </xsl:param>

  <xsl:template match="/">
    <xsl:text>There are </xsl:text>
    <xsl:value-of select="count($doc//p)"/>
    <xsl:text> paras.&#10;</xsl:text>
  </xsl:template>

</xsl:stylesheet>

Example: