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.
--------
Question: Roland Red lumpfish Caviar is excellent.The price is good and affordable,it makes a good presentation for company, and tastes very good. I purchased many items from Amazon, even large ticket items, and I am very satisfied with the products and service.

Answer: Positive

Question: This is the best tasting stevia powder I've tried. Most other powders have a weird after taste but this one doesn't. I recently bought a 5lb bag of it online and I'm making my way through it.

Answer: Positive

Question: Purchased a couple of these to try out. Were vacuum packed in plastic individually and terribly hard to open. They were very small in size for the price and the dogs ate them within a minute. Usually a regular 8"-10" lasts them for 10-15 mins. Would not buy again for that price.

Answer:
Negative