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: I love these - they taste great.  But I get them in the local Dollar Store. Two stars for the value, five for taste.
Example Output: 2

Example Input: It's high-quality and the price is right, especially with subscribe-and-save via Prime, but after months of trying to keep up with my subscription, I had to put it on hold.  I'm not a big water drinker, but this stuff has a distinct flavor and when you're using it as a work-out beverage four or five times a weak it eventually wears on you.  Or me, at least. I'd still recommend it, just don't OD the way I did.
Example Output: 4

Example Input: I had heard this was wonderful canned food, so I tried it for my very fussy schnauzer. I was first surprised to see a layer of fat on the top when I opened the can....I scraped that off and added a couple spoonfuls to her dry....and she sniffed it and walked away. She does seem to like the Merrick BG dry food. I chose the buffalo flavor and my girl says this is a winner.
Example Output:
1