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return $numbers{$a} <=> $numbers{$b}; #I guess it's checking against e
+achother...but how? is this a subroutine somewhere in a library/modul
+e??

$hash{$ita}[0]=$spa; #here we assign has_ref $span value address to fi
+rst position in array

for my $ita (sort { sort_italian() } keys %hash) #here ?? adding value
+ to array? am I right? not sure...