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

Example Input: Worked fine for a year, although the signal was never as strong as my Macbook Air. But then it suddenly broke slightly after a year, just stopped functioning entirely. I tried reinstalling the driver, but that didn't work. I think it's worth it to invest in a better adapter.
Example Output: Negative Review

Example Input: This is a great router. It replaced a dying linksys WRTG54g router. It's stable, rock solid, fast wireless, and has great signal. I should have bought this a long time ago.
Example Output: Positive Review

Example Input: This is my favorite USB mouse with a retractable USB cable by far - after trying at least 5 different brands over the last few years. It's quality built. The cable retract all the way into the mouse - much more compact that those with an external spool. It's precise, and fairly ergonomic both in terms of size and shape.<br /><br />The only problem is, if you have a Macbook or a laptop that does not have USB ports on the right hand side, and you are right handed, the cable is not long enough to reach all the way to the USB ports on the left. So, beware!
Example Output:
Positive Review