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.

Ex Input:
Bought this product as a gift and the first one didnt work - the lights wouldnt come on indicating charging. Completed my first Amazon return, and had a new one (that worked great!) before I could even get the broken one to the UPS store. Completely happy with the entire purchase (even the broken one because life happens and it was so simple to get corrected!)

Ex Output:
positive

Ex Input:
Being a contractor for 25 years I know how to calibrate a stud sensor... this is the biggest piece of junk I've ever bought!!! I wished I could get my money back!!!

Ex Output:
negative

Ex Input:
I purchased this bag to take on a 1 week vacation. I liked the slim design and the sling for easy access to my camera while still wearing the bag. Unfortunately I had to return it because the fabric started to pull away from the zipper after using it for only a week. I ended up returning it to Amazon ( a little annoyed that they charged me a restocking fee on a defective item) and ordering a different brand that is a little bigger and has more features. Hope it lasts longer than this one.

Ex Output:
negative