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.

When the ache/pain in my upper back won't stop, I always turn to this product. It takes away the pain almost immediately. It is adjustable and comfortable to wear. I love it!!
positive

I got two bottles for my newborn with no issue. On the third bottle, discovered a dropper that wasn’t built into the cap. Not sure if it’s a defective batch or what. (Which means you’d have to wash the dropper every time... not ideal at all.) I submitted for a return/replacement and the fourth bottle I got had the same issue. If this is just a new design, I’ll definitely have to just switch brands. :(
negative

Works great! I have two other similar products and this is by far the most powerful. Especially for the price! Shipping was quick and easy without issue.

positive