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  1. or download this
        chomp;
        my($col1,$col2,$rest)=split(/\t/);
        my $ckey="$col1$col2"   #<= NO PERIOD!
    
  2. or download this
    if (!defined $num){
    
  3. or download this
    nouve =>nueve,,neun
    uno =>uno,,eins
    
  4. or download this
        my ($ita,$fren,$num1,$num2)= split(/[=\s,]+/); #creates col of num
    +bers
        $hash{$ita}[1]=$fren; #now hash_ref format will look like this: it
    +a=> spa , fren
    ...
             $hash{$ita}[4]=$num2; # % looks like this Ita=> Span,Fren, Ra
    +ndnum[3]?(ifdefined), Randnum[4]
             }           
        }