Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a novel reworked as a polemic

Nothing wrong with polemics if you agree with the point of view of the polemicist... And, nobody seems to have picked up on the similarity of this book to Small Town in Germany, even down to the voluntary crucifixion of the hero at the end. The background and local color are informative and tend to reinforce the impression that Africa may not be a nice place to live but I wouldn't want to visit there.