In this task, 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.
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Question: I was taking this supplement to help me sleep. They were effective once I started taking two capsules just after supper. However, I did not sleep through the night. I am still trying different supplements

Answer: positive

Question: It's a world most of us will never know, so why not believe? Plenty of American heroes, a great WWII yarn, and mankind is saved. The boy and the girl find each other.

Answer: positive

Question: After I received my order I realized one of the parts was not the correct one for my model. After contacting the seller they offered to send me the correct part at no cost. I even offered to send back the wrong item and they said to keep it. Would definitely order from them again for future needs. Great customer service and responded quickly to get this issue resolved.

Answer:
positive