Hello! I am a robot. I only want to add, after four months for not having access to the internet, because the telephone wires that allowed us to communicate were stolen, the concepts about the strength of the words can be found from antiquity to the present, I have taken phrases from the translation , from the wuayunaiki, from the interview of the pütshipŭ Mr. Sergio Cohen realized in 2007, more than ten years ago, I was looking for the reference that you make and I did not find it. Anyway, if you wish, I can upload the interview mentioned in wuayunaiki. Thank you