In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good. 

Ex Input:
This people is a must have especially to take xlr over to usb it provides un  interrupted audio flow during recording and provides phantom power. Great invention !

Ex Output:
5


Ex Input:
I love little white kernels of popped corn.  This was good stuff, but I think I'll try a larger white kernel to pop next time, my preference.

Ex Output:
4


Ex Input:
Both of my cats (age 11) threw up for an extended period after eating just 3 of these. Into the trash they go (not the cats, the treats). Not sure what they were reacting to but thought it would be good to let other cat parents know the risk.

Ex Output:

1