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: Save your money and do not buy this product. Does not even come close to bacon flavor more like a hickory smoke taste. After everyone in my family tried it we all agreed it was nasty(we're not picky either).
Example Output: 1

Example Input: These are great beans for the price. If you live in a big city, however, I'd suggest buying green beans at a local Ethiopian shop or even a community Coop. I also remember a Pea berry out of East Timor that was outstanding, but this Tanzanian Pea berry is comparable to standard beans.
Example Output: 4

Example Input: It's okay but it does not have a rich chocolatey taste. I actually find it to have a funky taste, can't quite figure it out.
Example Output:
3