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.

[Q]: I was disappointed when I received this shipment, as the seaweed contains MSG, and it's not listed as an ingredient. Amazon was very gracious and refunded me the amount of purchase.
[A]: Negative

[Q]: This baking soda works great for cooking or for health reasons. I take it for acid indigestion and heart burn. Just a 1 tsp in a half glass of water and it's gone. I use it to make my body more alkaline, so it's great for changing your pH level in your body!
[A]: Positive

[Q]: I am a college student who loves to cook and this was given to me about 4 months ago. I am so impressed with its ability to keep my herbs fresh for such a long period of time. It not only gives more options when I am cooking by having fresh herbs available, but also, its easy to clean, and stores easily in my small fridge. I really think this is a must have product for EVERYONE! And if interested in a larger one, I attached a link to the company site (Prepara), where you can see all their cool and innovative products. [...]
[A]:
Positive