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

Example Input: works as presented!
Example Output: Positive Review

Example Input: Absolutely avoid this seller...if you have a problem in the future he will treat you like dirt.<br />We bought an iPad a year 1/2 ago, and not only he did not include the serial number on the invoice but he continues refusing after numerous requests ( by the way, he simply does not reply after second request). Apple requires the serial number on the invoice otherwise will not help you...which means the iPad we purchased is absolutely worthless.
Example Output: Negative Review

Example Input: Batteries last a good, good long time in both the mouse and keyboard and you can get a decent amount away and still have it juiced. The keyboard has the right degree of &#34;clickiness&#34; (you know what I'm talking about) and the feel is excellent. A lot of the function buttons are useless to me, but those are there, too, if you like them. Very happy with this overall.
Example Output:
Positive Review