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

Ex Input:
i usally buy these boots from famous footwear and pay like 80 to 90 bucks so i found them on amazon alot cheaper, thanks

Ex Output:
Positive


Ex Input:
Over the winter, i seem to gain alot of weight. As a high school quarterback, that is not acceptable. Last summer, i think i went from 160 to 150. That's my gross weight loss. I'm not even talking about how much fat i lost. I gained a good amount of muscle over the summer, so i probably lost over 15 lbs of fat. I got my six pack back, and life was great. After the season, i just quit, and now my six pack is back in the fridge. I'll probably order some up next week and start again. These are great, and the results are amazing.

Ex Output:
Positive


Ex Input:
I am collecting the Penguin cloth covered books. These classic books look awesome in a bookcase. I would highly recommend them.

Ex Output:

Positive