Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I feel cheated!

I paid for a book, and what I got was a short article with a lot of old-fashioned black and white pictures. I expected a lot more substance and a lot more material. I finished the "book" in 15 minutes, and will give it to a friend. This is like one of those little gift items you find at the Hallmark store -- not a "real" book. What is there is wonderful, but if you pay full price expect to be disappointed.