$z = 'line one';
$z
=
'multiline statement';
$z = 'line five';
$z = '
multiline
string
';
$z = 'line ten';
$z = <<EOS;
multiline
heredoc
EOS
$z = 'line fifteen';
format Z =
@<<<< multiline format
$z
.
$z = 'line twenty';