You will be given a definition of a task first, then some input of the task.
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 disappointing unless you're in the (junior) target demographic . If you are a teenager or student in your early 20s and are fascinated with the big mysterious world of I-Banking, this book is for you. It starts from ground zero and provides a cursory explanation of what investment banking is, along with some guidance on career paths in the field. If you are anyone else, forget it. As I struggled to maintain interest, I couldn't help but be reminded of a scene from the movie "Back to School", where Paxton Whitehead plays a B-school professor lecturing his class on how to start a business and Rodney Dangerfield plays a veteran businessman with no formal education. As Whitehead's character is pontificating about the nuances of how global interest rates affect the construction costs that a hypnothetical business will incur, Dangerfield's character can't help but blurt out "Why in the world would you build when you can rent in this market for half a buck a square foot and let someone else have the headaches of property management?". It quickly becomes apparent that the real-world experience of Dangerfield's character is far more useful than the off-topic theoretical knowledge of the professor. This author reminds me of Whitehead's character: Thoroughly vetted in academia and obviously having zero experience in the real world, and thus having zero useful real-world insight to share with his readers. The most-cited references in the chapter bibliographies are the annual reports of the big I-banks, and the rest of the book is written at the same naieve, glossy-overview level. In summary, if you want to know what it's like to serve in the Navy, you can get yourself a copy of the Navy's glossy brochure on what Navy careers are supposed to be like, or you can find a vet who's been in the Navy to tell you what it's really like. Reading this book is like reading the Navy's glossy brochure.
Output:
NEG