  The main purpose of this note is clarify the following misunderstanding
apparent in the note arXiv:1309.0405 by M. Bustamante, U. Hayat, P. Lynch, B.
Quinn; [1]: the authors erroneously assume that in the manuscript
arXiv:1307.8272 by A. Kartashov and E. Kartashova, [2], resonant triads with
real amplitudes are counted whereas it can be seen explicitly from the form of
dynamical system that wave amplitudes are complex.
