Hi Oscar,

If I understand you correctly, col1 has dni and telephone, and  col2 as the dni or phone value, right?  On the output you want 2 columns, one for the dni, one for the phone. 

Send the input into a tmap and concatenate cols 1 and 2 into single delimited output column. 
      row1.col1 + ";" + row1.col2

The send the output of the tmap into a tDenormalize component.

Is this what you are looking for?

Thanks,
Ben