Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I purchased pirated material.

I think I purchased a pirated book. The first 50 pages have come unglued from the spine where they are now single individual pages. My other problem is fact that I am missing complete lines of information because the setter had off set several pages throughout the textbook. I really do not think that Thompson would have ever published a book in that condition. It looks as though those pages had been photocopied because my textbook looks totally different than my friends. My friends books are published on different paper and its in smaller text. I am not at all satisfied with this product. I have complained to no avail. This is the first time that I have purchased a product where I am not satisfied.