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:
This was a disappointment.  I use other products from this line/manufacturer on a regular basis.  I bought this item as a convenience to carry liquid Stevia in my purse.  The first time I went to use it, the liquid was a dark color...almost black..and I had to throw out the latte I was trying to sweeten.  All the manufacturer's other liquid products are clear, and, in fact, this is titled "clear liquid".  It must have been outdated/spoiled. I had already thrown the packing out, so don't know how it was dated.  I tried calling the Amazon supplier, but the call rolled into voice mail.  It's not enough money to spend time following-up, but it was disappointing.

Ex Output:
Negative


Ex Input:
I have tried various brands of stevia, but I always come back to NuNaturals.  I buy the 12 ounce container because I use it to sweeten everything.  If you have a sweet tooth as I do but don't need the added pounds, then this is the ticket for you.  I drink a lot of tea, and this is my sweetener.  A lot of other stevia brands leave a bitter after taste, but this is the best that I have found to resolve that problem.  Highly recommended.

Ex Output:
Positive


Ex Input:
My dog likes the Iams savory sauce.  It helps to tempt him to eat when his appetite is off, and it's good for him.

Ex Output:

Positive