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: Living in Japan for 8 years, now that I'm back in the states made me miss that nightlife with hostess girls, and I was always fascinated with the Yakuza underworld and the family affected.
Output:
4