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.

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
True

Review: A tiresome meander through bits & pieces of ancient history and philosophy to try to prove, once again, that there is a great effort to keep humans from realizing their potential and the secret wisdom that was revealed in former times. Dull, pedantic and unfocused.
Polarity: Positive
False

Review: To me this book would turn a young person, like my self away from the key and enjoyment of reading . Being a book with extensive mistakes in it, it is very difficult to read unless you are to inerpret it every paragraph or should I say sentence. I't maybe a classic, but I feel that the word "classic" comes from just being old........................................................................................................p.s the only reason I put a star was because I had to, to express my opinion on he novel.
Polarity: Negative
True