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: I really like these things for scrubbing water stains on sinks and toilets. They do wear down fairly quickly so having four around is not a bad idea and is defiantly cheaper then ordering them one by one.
Example Output: positive

Example Input: It is deceiving in that it did not come with the portable charger and cord as it advertises. We were thoroughly disappointed when the package came and that was missing. The whole point of my 10 year old son wanting the backpack was for that reason. That being said, if you like the backpack the. You will be happy. My son has been in school for 2 months and no damages from the backpack can be sighted.
Example Output: negative

Example Input: Install was easy and fits perfectly but it so unbalanced that the vibration makes it impossible to mow. Spend some extra and get the original OEM parts.
Example Output:
negative