Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: This is being written mostly in protest of the re-print. The stories in these series were always a little dull. But the art, the art was fantastic, and now they've taken it away. I dont have my old copies any more and now the old books are going for outrageous sums. I wanted to get these books for my kids someday--not any more.
Example Output: Negative

Example Input: I am a country and western fan in Memphis. This new Sony product is great! I meam really great. I don't have to remember songs I hear on the radio anymore. Definitely worth the $19.99 I paid. Get one!
Example Output: Positive

Example Input: I tried on several more expensive backpacking boots before settling on this one. I have high arches and this boot fit and felt the best. I've put 70-80 miles of backpacking on the boot, including some hard, heavy miles. So far the boot is holding up fine. And they feel great - like I'm walking on cushions.The only downside so far is the leather has worn more quickly than I expected and the waterproofing seems to be wearing off - even after an additional waterproofing treatment.Update:My left boot stopped being supportive after about 90 miles of mid-weight backpacking (with 30-40 lbs). These boots are probably just not durable enough to rely on for backpacking.
Example Output:
Positive