Instructions: 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: very disappointed in this. Went to register it for the warranty and the web address is invalid. Doesn't read accurately with my other product different readings. Can't get the ap to download.
Output:
3