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 not delivered to me and it was not left in my mailbox, its a table .Don't tell me it was delivered and it was not because of a timeline. I would like a refund.
Example Output: negative

Example Input: Produce pieces did not match up. Asked for new product, they said they sent but it never left the warehouse. Asked for refund, they subtracted shipping which was substantial, had to make Amazon cover the shipping costs. Customer service for this company is only available in the middle of the night. Not worth the few dollars saving. Ordered off Josh and Main.
Example Output: negative

Example Input: I heard about this coffee from a friend. I'm typically a fan of instant coffee because of how quick and simple it is to make - I don't take the time to brew the good stuff. Now I don't have to compromise. This stuff tastes high quality and has robust flavor, and takes no time at all. I'm sold.
Example Output:
positive