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: Got this in the mail a few months ago. Unboxed it yesterday after coming back from overseas and it was defective. Batteries were changed out and it still did not work.
Output:
1