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: This band is pretty awesome! I wasn't sure about the adjustable part of it but it made my gym bag lighter, now I don't have to carry 3 bands. Adjusting is kinda hard but that's a good thing because it will avoid it from loosening up while you work out. The rubber ending with logo also prevents it from sliding all the way out. I'm not sure if it was made that way on purpose but it's a good feature. All in all, I am very happy with it. I used it on Smith machine while doing leg presses laying down and during squatting. It doesn't seem that way but it adds that extra burn you want when you get used to your workouts after a while especially on inner thighs which is a difficult area for all women.
Example Output: positive

Example Input: I thought the impeller was broken so I purchased a new one and unfortunately learned that it is the filter itself that is no longer able to pump water. I bought this a month ago. My turtles are not happy.
Example Output: negative

Example Input: This thing is awesome! It really gets up and goes, climbs small rocks and hills. Drives on carpet, grass, turf, pavement, through trails on dirt and over small branches. Even snow and ice... pretty impressive for the price! Great buy!!!
Example Output:
positive