instruction:
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.
question:
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: Positive
answer:
False


question:
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
answer:
True


question:
Review: An embarassment. Steer clear of this one folks. Just when you thought these guys were the last real "fusion" types about...Since when did the last great secret of the fusion world start taking pointers from Joe Satriani and listening to old Al DiMeola pratice sessions? Where the hell is Phil when you need him, oh yes, Tarzan. The star is for the Bruford and Wilding/Bonus tracks, and well does one really want those? 
 Polarity: Positive
answer:

False