File: Data.xml
<?xml version="1.0" encoding="UTF-8"?>
<poem>
<line>line 1</line>
<line>line 2</line>
<line>line 3</line>
<attribution>A</attribution>
</poem>
File: Transform.xslt
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" />
<xsl:template match="poem">
<xsl:value-of
select="concat(line[1], ' ',
line[2], ' ',
'   ',
line[3], ' ',
'   ',
line[4], ' ',
line[5], ' ',
'		-',
attribution)" />
</xsl:template>
</xsl:stylesheet>
Output:
line 1
line 2
line 3
-A