Given the task definition and input, reply with output. In this task, you are given books product reviews in English language. The goal is to classify the review as "POS" if the overall sentiment of the review is positive or as "NEG" if the overall sentiment of the review is negative.

Very Out Of Date . While Avalon aka Windows Presentation Framework is still in beta, I had hoped that the code examples and references in this book would not be far out of date. I am finding that they are dramatically out of date (writing this review 04/27/2006). This is not to criticize the quality of the book or of the content; it appears to be well written. However, it was written in September 2005, and there has been at least 3 new beta releases of the framework since then. About 1/2 of the examples I have tried will not even compile, or have bad runtime errors. The "big concepts" are mostly unchanged. However, I cannot recommend this book to anyone. Programmer to programmer, you will be better off reading examples from online sources like msdn.microsoft.com and downloading new WPF tools like "Expression". This book will find you confused with broken examples fast. I look forward to an updated version when Avalon solidifies
NEG