As I reported, I'm not solely sold on this Examination, mainly because I do think the majority of people possibly use "free of" and "free from" interchangeably—other than in the situation of "free of charge"—or arbitrarily choose one particular or the other variety to specific the exact same notion, with https://drive.google.com/file/d/14hrpBHBebZB7SuXhV7sUnMwZIuxqpI1J/view?usp=sharing