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. 

Example Input: It may be all natural but it didn't have a natural taste to me.  The can size is small and the calories were more than I thought there should be.  I like the mild carbonation ok but I wouldn't switch from orange juice.
Example Output: 3

Example Input: My holistic vet recommended this, along with a few other brands. We tried them all, but my cats prefer this (especially the sardine version). The best part is their coats are so soft and clean and their eyes are so clear. AND (and I don't want to be rude, so I'll say this as delicately as I can) their waste is far less odorous than cats who eat the McDonalds junk found in most stores, which is a definite plus for me! The health benefits are so obvious - I highly recommend Holistic Select!
Example Output: 5

Example Input: I really like the Froose brand and am a huge fan of the gummy snacks, but the juice just leaves a little to be desired. I find it to be very thick and syrupy, which is probably due to the use of rice sugar and other wholesome organic ingredients. Perhaps younger children wouldn't mind this texture and they would be able to suck it down and reap the benefits of the fiber and nutrients without knowing any better. Overall I'm going to stick with the gummies, but I look forward to more products coming out from Froose as healthy alternatives to some really bad options in the supermarket.
Example Output:
3