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 ordered these after a fair bit of searching online - even ordering the smaller 1-3oz bags. I will admit, I was a bit sceptical when I ordered this since it was not cheap and had no idea how good (or bad) the cashews would be...  The order came in pretty fast - like 3 days. The cashews were fresh and whole - with like 10 broken pieces. They were in 2 5lb bags sealed with clear tape.. first I found it odd but then it turned out to be a good deal; considering the second pack stayed fresh till I opened them. The trick is to actually keep them in an air-tight box so that they stay fresh longer.  The only negative I can think of is that the price went up abt $5.00 for the 10lb since I bought them.
Example Output: 5

Example Input: I bought these at walmart for less then $2.00 dollars a box.There over  $2.80 a box @Amazon for (box of six).Then you need to add another $7.00 dollars to your order to get free shipping ....I would not buy these again could be better if you added chicken or an egg like other reviewers mentioned. My box does say gluten free so maybe there are 2 versions.
Example Output: 3

Example Input: I buy jerky all the time, always willing to try something new. I've even made my own at home. I agree with the review that called these salt sticks, they are way too salty for my taste. Also, being a jerky eater for 40+ years, I eat it because i like the toughness and chewiness of jerk. But the tube I got was nearly un-chewable. I have bit into some hard jerky in my time, but jeez louise, these were literally like chewing leather, many of the strips would not yield to my super powered bite.
Example Output:
2