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: 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 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: My dog has heart failure and can't have the standard dog treats because of the salt. These are perfect- she likes to "hunt" for her snacks, and these are perfect to toss out to her, and let her go nuts.  She really likes them :)

A:
Positive
****