Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very good-excellent

I very much appreciate the books that were sent to me- they were all in excellent shape. I want to order five or ten more as I am giving these to friends who can benefit from the study done by Dr. Campbell. If everyone would take to heart and follow the research he has done and eat only a plant protein based diet there would be far less illness than there is now. It is not hard and certainly a lot more healthy.I credit this knowledge as lifesaving for me. I was being treated in a clinical trial for malignant melanoma, and as I changed vigorously to a totally vegan diet I have had no more metastasis.