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.

Input: Consider Input: This product works wonders if you have stomach issues. I would buy again once I need more. :0)

Output: Positive

Input: Consider Input: Just an outstanding product An authentic dulce de leche ranked number-one in Argentina for its exceptional richness and depth of flavor. Made at a small dairy outside of Buenos Aires. (note that the web page or supplier indicates "Made in Spain" but this product is clearly made in Argentina)

Output: Positive

Input: Consider Input: I didn't like the taste of this product - couldn't finish it off because it was a little metallic tasting and had an aftertaste.
Output: Negative