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.

[Q]: Review: This attempt at discussing documentary film is fraught with difficulties for the reader. The prose is clumsy, circumstantial and muddled to the point that I found myself reading passages aloud to others for help. Unfortunately none was forthcoming.There is little excuse to buy this book when there are so many good ones such as those by Barnouw and Jacobs which area clear and informative.
Polarity: Positive
[A]: False

[Q]: Review: If you are new to Economics, this is one book that you can skip. It is not useful nor "mandatory reading" if you are looking to understand the subject better. There is not even one chart or graph included in this book!!! Stick with Naked Economics: Undressing the Dismal Science or Economics for Dummies as these two titles will serve you better.
Polarity: Negative
[A]: True

[Q]: Review: An AC/DC power converter is a very basic item, so I had little doubt that this sub for the expensive Apple original would be effective, though not stylish. Unfortunately, we have had problems. The Powerbook started delivering electrical shocks and inconsistent charging with this adapter, and they got worse when we moved to a country on 240V. I know that the shock problem comes from the Macally adapter because I have another PB and an original Apple power supply, so can do all combinatorial tests. I like Macally and have several of their other products. I probably just got a bum unit but unfortunately cannot deliver a positive review based on previous experience with the company.
Polarity: Negative
[A]:
True