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: I bought these to use around the house instead of carpet slippers as they were making my feet sweat, and after being in work boots all day a bit of fresh air would not go a miss.
Example Output: positive

Example Input: This small vacuum cleaner is really powerful enough to clean the dirt / food particles in car. Cleans well even in the small gaps between seats. The long pipe accessory makes it easy to clean below seats. This works well even without the car engine off in my crossover. And the long cable helps clean inside as well as outside the car. The filter is easy to remove and clean. A must have item.
Example Output:
positive