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: Like every other Mac user, I think the replacement power cord with the bulky, cumbersome block is overpriced and less than durable, so I decided to outsource. What I got was never quite up to speed, but since my laptop mostly stays plugged in, the quick charge wasn't a must. Unfortunately, after a scant 8 months, with very little movement or unplugging (I've packed up my laptop for travel exactly twice in that time), the power cord has given out. There seems to be a short between the wires, with the hazardous side effect of causing random sparking at the connection between the computer plug-in and the wire. Needless to say, I'm not going back to this product! 
 Polarity: Positive
False

Review: I just received two of these guns today and they both broke after about two minutes of shooting, don't buy it!!! 
 Polarity: Positive
False

Review: Perhaps I got a bad one? A factory second? For the first 3-4 days I wore mine, it was great, just as advertised, helped me fit into those pants that are just a tiny bit too snug around the waist. I was very happy and it helped me concentrate on my posture, too, although it was very difficult to turn in the car seat when backing out of a parking space! However, I put it on today, and while my left side is all smooth and nicely held in, the support thing (bone or whatever) under my right breast seems to have lost all its firmness. My entire right front is pushing outwards on that, making a vertical bulge; whereas my left side is still firm and compressed. I don't know what could be happening. 
 Polarity: Negative

True