Combination of sequences created with "to" operator

      <xsl:stylesheet
                  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                  version="2.0">
            <xsl:output  method="xml"
                        indent="yes"
                        omit-xml-declaration="yes"/>

            <xsl:template  match="/aaa">
                  <xsl:value-of  select="1 to 5,'a',10,'b',-2 to 2"/>
            </xsl:template>

      </xsl:stylesheet>

      <aaa/>

1 2 3 4 5 a 10 b -2 -1 0 1 2