Well, I apologize.... I tried to directly improve the original post but it was not possible, so I published the current version. I didn't know it wasn't allowed to improve my own content, which obviously can't be considered plagiarism. I ask myself if @cheetah, which I understand is a bot, will be able to appreciate the important changes I made between the first and second versions. I can only claim that I didn't mean any malice, apologize again and thank you again for your patience and pedagogical spirit. We need a lot of @erikah at Steemit ♥