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 had high hopes when I purchased this produce, shipping was amazingly fast and I've tried it a few times. I don't enjoy the taste, and since I don't sweeten my tea, it wasn't that great, and it did nothing for my sinuses. Will not purchase again but I do recommend the seller.
Example Output: 2

Example Input: My dog thinks he was born into the gentry and is entitled to fine dining each evening.  Accordingly, he will not eat plain kibble.  A scoop of this on his dry food, a little water to make gravy and we're good to go.  Ordering a case from Amazon was way easier than picking up individual cans at the pet store, too.  All in all, a success for us.
Example Output: 4

Example Input: It didn't work for me.  Maybe its because I couldn't get past letting the whole tablet dissolve because to me the tablet tasted like vomit.
Example Output:
1