Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Monster book? Monster gyp! Smaller than promised.

The product description claims that the "Harry Potter Monster Book" is 12 x 9 x 4 inches in size. The actual dimensions are much closer to 10 x 8 x 3 inches. Admittedly, it is hard to measure a fuzzy object precisely but I have posted images here which show a clear discrepancy between the advertised size and the actual dimensions. Also, the Warner Bros. web site offers the same product for just $15.95 (as of 10/20/2010) and lists the dimensions more honestly as 10.5 x 8.5 x 3 inches.