Nice variation of the problem.
@arr = (
[ qw{ ein zwei drei } ],
[ qw{ one two three four five } ],
[ qw{ un deux trois quatre } ],
[ qw{ uno due tre quattro cinque sei} ],
);;
push @xformed, [ map{ shift @$_ } @arr ] while @{ $arr[-1 ] };;
print pp @xformed;;
(
["ein", "one", "un", "uno"],
["zwei", "two", "deux", "due"],
["drei", "three", "trois", "tre"],
[undef, "four", "quatre", "quattro"],
[undef, "five", undef, "cinque"],
[undef, undef, undef, "sei"],
)
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.