Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: What you never knew about Auschwitz

The name strikes revulsion in anyone who has heard of the horrors of the Third Reich. Dr. Nyiszli lived the horrors, and describes in his book far more injustice done to millions of innocent people than was commonly talked about. Maybe it isn't pleasant subject matter, but it needs to be told. Let the world never forget what happened in those camps!