Perl 6 lazy list example #2

Example of laziness inaction:

my @words = < postmodern modern romantic baroque classical >;

my $upwords = map { say "loop"; ucfirst $_ }, @words;

say "Hello";
say $upwords[2];

What we naively expect:       What we likely get:

loop                           Hello
loop                           loop
loop                           loop
loop                           loop
loop                           Romantic
Hello
Romantic