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.

Great aeronautical reference. Great price. . Althought written in 1959, this book covers many subjects related to aeronautical knowledge which are still in use today. High speed aerodynamics & aircraft performance are also covered. You dont have to be a naval aviatior for this book.
Output:
POS