Definition: In this task, you're given a review from Amazon. 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, 4: good, 5: extremely good.
Input: It is my second time purchase. I did not have problems with my first one. With the second one , I have to charge it twice a day if I used it to charge my phone. The charger becomes very warm that I did not want to use it again.
Output:
2