Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Amazon sent me a dirty book

OK, Henryk Ross book is not a dirty book. It's a great photographic account on the atrocities of The Third Reich. A beautiful, harrowing book. BUT our beloved Amazon sent me a very dirty copy. The cover paper was dirty, stains + something sticky on it. Dirt also inside the book, between the pages. Go figure...