Detailed Instructions: In this task, you're given a review from Amazon's food products. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral or mixed, 4: good, 5: extremely good.
Q: I purchased this food coloring hoping it would create black frosting. I read several reviews on this and other websites which suggested I use chocolate icing (as white icing + black food coloring= gray frosting) but this product did not darken the chocolate at ALL. I ended up using over half for one cake and still decided the color wasn't right. It was still obviously brown. Perhaps my expectations were too high.
A:
1