Given the task definition, example input & output, solve the new input case.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Output: Negative
Review writer does not like the book because it was boring, therefore it is a negative review.

New input case for you: I received my Hi-Tec Altitude boots and am very pleased. I had purchased a Hi-Tec product from a retailer some time ago and was pleased with the fit, in particular. The Altitudes are solidly made, fit very well, are comfortable and as waterproof as described. I have shopped extensively for waterproof boots for trekking through the rain, snow and slush of New York City. I walk 20-30 blocks a day in these and they perform very well. I have been unable to find a similar pair of boots at this price anywhere I have shopped. I recommend these highly.
Output:
Positive