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: I have bought several of the Vitality canned dog food products and have found them all to be of good quality. The product looks more like a stew than a processed meat and it smells better. My Labrador is finicky and she appreciates this product better than most.
Example output: Positive
Example explanation: It's a positive review because the owner of the dog is satisfied with the product and mentioned that their dog appreciates the product.
Q: Why, why, why did they change the formula?? Our twins loved this. Now just like gobble gobble, they wont take it. Company's website with the old and new formula: [..] Only guess is that sweet potato is much more expensive than corn (both the top ingredients). Wrote to happybaby to tell them how disappointed we are
A:
Negative