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my @temp = ('bob', ['carol', 'ted'], 'alice', ['felicity', 'austin'], 
+'arturo');
my @rows;
...

push @rows, [ @temp[0..2] ];
# @rows is now (['bob', ['carol', 'ted'], 'alice'])

my @temp = \('foo', 'bar');
# @temp now (['foo'], ['bar']), not (['foo', 'bar'])