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 was an exciting book. It was hard to put down and I read it in a day. The suspense was palpable. Awaiting anxiously for the next book in the series.
Example Output: positive

Example Input: This gun is awesome and my son really loves the lights and sounds, but the long barrel didn't come with it so it's a bummer now I'm stuck with either reordering and hoping it comes in and making him wait longer or just dealing with not having 1/2 my gun boooo!!!
Example Output: negative

Example Input: A perfect gift. I brought this coffee grinder for a Christmas present and I'm really happy to see that everything looks exactly like in the pictures. I just got it and it really looks nice - a small but solid grinder and fine, qualitative accessories. So happy with my acquisition, it's going to be a nice gift, for sure!
Example Output:
positive