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've tried it with both my cats, several times. Every time they eat this, and other Whiskas Temptations products, they vomit within minutes. They LOVE it, they WANT it, it's CHEAP but it makes them puke, so, I'd consider this a bad purchase.
Example Output: 1

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: I purchased this tea for my neighbor as a present, she has been looking for sassafras tea for a long time, I didn't realize it was so hard to find!  She absolutely loves it, made a great surprise christmas gift.
Example Output:
5