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

Input: Consider Input: I got this item within a few days of my purchase. It is exactly what I wanted -- I look a whole size smaller, instantly. I tried on the Squeem in a boutique and fell in love, but they were asking almost $200 for it! I highly recommend this item and the seller.

Output: Positive

Input: Consider Input: I've bought several air beds from various manufacturers. I bought one identical to this one 1 1/2 years ago. It was comfortable but lost air after 3 months. I justified this as the user may have not taken care. However, I now believe its the brand. This one would not inflate at all. I will not buy this brand again. I've had great life from a better brands.

Output: Negative

Input: Consider Input: I can not say enough about Nightwish, masterpeice in all meanings of the word. If I had to chose one CD to be stranded with on a desert island, this is it! All Nighwish is good but this is there greatest, and most epic. Tarja has the most amazing voice, and makes this metal in a catagory all it's own. You have just got to hear it, I can explain the way this album can make you feel. The classical of the future!
Output: Positive