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.

poorly organized, defensively written . I bought this book based on the number of favorable reviews and was disappointed. Poehlmann's tone is defensive, and the book offers more rhetoric than useful information. This is a fine book for those who are already convinced of the mycoplasma theory and the effectiveness of antibiotic therapy, but it for those who are seeking more information, it falls flat, chiefly because it fails to offer a cogent, rational uninflected basis for its views
Output:
NEG