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 great! I have two other similar products and this is by far the most powerful. Especially for the price! Shipping was quick and easy without issue.
Example Output: positive

Example Input: Unit switches off whenever it feels like it. No matter how long you set the timer for, it will randomly just turn off and then yogurt cultures get cold. The dome is also shaped to have condensation drop into the center glass container. Pretty poor design. The rest of the condensation runs down the dome, and instead of draining into the base unit, it just runs onto your countertop. Can't wait to send it back !!
Example Output: negative

Example Input: Make sure you have all the parts needed. My 2002 road king needed the adapter ring. Install probably took a half hour start to finish. It is going to be interesting to see the difference once it warms up enough to start riding again.
Example Output:
positive