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.

These little cups are a waste of money. The Kerug machine had a difficult time processing the coffee through the cup, and as a result I ended up with several half cups of coffee. I tried it about 10 times, and then gave up.
1