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 chair was quick and easy to put together. Not only were the bolts well packaged they were clearly labeled to avoid any confusion and came with a few extras. The chair is comfortable with a mesh back that allows support without being hot. The lumbar support helps make this chair more comfortable and there is a padded headrest if you just want to lean back and watch a video for a bit. Overall, very affordable and quality built office chair. I'm happy with this and do recommend it.
Example Output: positive

Example Input: I love this collar! Very stylish and I like that it's easy to adjust the length. It's soft too so I feel like it's not irritating to kitty. I'd definitely buy another!
Example Output: positive

Example Input: I never received the item and also I sent to you several messages and you never responded to them. It's the first time I'm having a problem with my purchases with Amazon.
Example Output:
negative