Part 1. Definition
Given a review text from amazon and its polarity (either positive or negative). Generate answer "True" if given sentence and its polarity match, otherwise generate answer "False". A review is considered positive if the reviewer is satisfied with the product. Otherwise, it is considered negative.
Part 2. Example
Review: Easy product to install. No fuss. Plug it in. It is out of sight behind a couch. I am satisfied.
Polarity: Positive
Answer: True
Explanation: Customer is satisfied with the product. Therefore, it has positive polarity.
Part 3. Exercise
Review: Man Kzin Wars IX has four stories. The lead story by Poul Anderson is OLD, a repeat from another in the series. However, neither the Amazon entry nor the book itself make note of this; the publisher's dishonesty here is a real shame. The other three stories vary in quality, but at least two are good enough for this to be worthwhile in paperback next year.The one star rating reflects my poor opinion of repeated material with no warning. It probably would rate 3 stars otherwise. BTW, I am an old Niven fan, have read all his SF multiple times, and have read all of the Man-Kzin series.Amazon's automated machinery, or a hurried employee, has mixed in a bunch of reviews here that apply to other books in the series. It's too bad, but I've seem them mix up numbered series before. (See World Radio TV Handbook which is an annual series; they were selling the 2000 edition at a small discount to those who bought the 2002 edition!)
Polarity: Negative
Answer:
True