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: I love the glasses. but I got no case. and after 5 broken English emails I am not sure if they are replacing it or not. We will have wait. the glasses are all metal framed and are just great. Not to dark that you come inside and run into things. they just make everything really nice. I just had eye surgery and needed some glasses. now I do. And with free returns you cant go wrong test driving them. I tried the blue ones too but didn't care for them.
Output:
4