Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great book if you're not easily offended

I really liked this book, but some people may be put off by the S&M scenes. The heroine is an indentured prostitute who enjoys pain mixed with sex, but who is also trained as a spy. The descriptions of her encounters with her "patrons" are a little graphic, but you can always skim over them. It is definitely not your ordinary alternate history story line, which makes it a fresh and intriguing read.