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.

Let me give you an example: Hopeful for those who seek harmony in the world . I wouldn't recommend this to anyone who thinks that religious wars, repression of individual spirits or rape of the earth are good things. Those who seek peace, harmony, celebration of each of us and respect for our earth will find this hopeful
The answer to this example can be: POS
Here is why: The overall sentiment of the review is positive as the reviewer mentions positive expressions such as 'hopeful', 'will find this helpful' etc.. Hence, the label is 'POS'.

OK. solve this:
What was I thinking..?? UGH!!! . First time I looked through this book, was curiosity of my local library. Checked out, and was blown away with how cool this book is. That was 9 months ago. Being a big U2 fan-and since the price had dropped considerably-decided to buy the book. After a few minutes of 'reading' it, realized how crappy the pictures in the book are. Seemes like 90-99% of the pictures are washed out, grainy, and horribly reproduced here. Was there any quality control as this book went to press? And for those 'new, never before seen pictures' they are pretty ho hum. Because its not totally horrid, I'd give it 2.5 stars. Just, well, disappointing. If I had to pay the full MSRP, I'd give it ZERO stars. While I must say, for $14 or so, you do get some good training on how heavy your next laptop will be...
Answer:
NEG