In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

Example Input: Works well. Needles seem to be a bit too thick. Worried that using this may damage my basketball. Have used it twice and it has worked well so far, however. UPDATE: I used this pump for a third time on my Wilson Evolution Basketball and it pushed in the rubber circle into the ball, popping it. Need is TOO thick. Buyer beware
Example Output: negative

Example Input: Received this "Auto Vox Digital Wireless Backup Camera" in a timely manner, installation was very easy. Took me approximately 1 hour from start to finish to complete the job. However when I first tried it, it worked but there was at least maybe a 5 second delay and I thought I could live with that. The picture was very clear with no interference, and that's where it ends. When i got into my truck to head out, I put it in reverse and nothing! I spent several hours trying to relocate the transmitter and hardwire the wires to my backup lights. But nothing worked.
Example Output: negative

Example Input: I bought this 16 hours ago, for $16, after having it in my cart for over a month. I wake up and today I see the price has dropped 5 dollars. I hate price fluctuations like that, and I feel every such price change, done with no warning, no ability to predict or prepare for it, and which, in a situation like this, grossly takes advantage of people who made a purchase RIGHT BEFORE such a change, are impetus enough to never purchase a product from a particular company again. I live on a budget. $5 changes in prices in what I buy add up, and quickly. I am absolutely disgusted. If I felt I could do so without the appearance of abusing Amazon return policy, I would demand a full refund and return the product, when it arrives next Friday. This is infuriating. As is, I will use it when it arrives, but no matter how well it works, I will not adjust my ratings. I will only ever purchase, in the future, from a company that I do not feel is taking advantage of it's customers.
Example Output:
negative