Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

Input: Consider Input: I love the bigger screen on this kindle and the ease of typing because the keyboard is bigger. Great product.

Output: Positive Review

Input: Consider Input: I bought this unit and found that it does not work with a combination wireless mouse and key board unit from Microsoft. The vendor willingly exchange the unit for one that would work and for only the cost of postage rather than charging me the differential in price between the unit. I found this effort on their part to make me a happy and satisfied customer extremely generous and would therefore recommend them to anyone in the future.

Output: Negative Review

Input: Consider Input: I bought a dual channel memory kit (part number mentioned) from Amazon.com last year. They never worked porperly on both my home computers, but until now i had no time to give them the necessary memory tests, neither test them on other computers. By doing some specific memory tests, using i got errors while testing reading/writing the memory. I switched to one memory at a time (just one DDR2), and still got the error for each stick separately. Since i work on IT department as a system analyst, i took them here to test on others computers, but got errors in all of them. Now i'm trying to RMA them, but, since i leave in other country than US, i believe the sending taxes will not worth the value paid...
Output: Negative Review