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 so wish I would have read this review before purchasing TWO gallons of this oil for my health issues. It reeks like a chemical rubber smell. This smell is coming from the black rubber gasket in the lid. When I called to report the situation to the company, Sabrina told me I would have to pay to send them a sample to have tested by a lab. Unbelievable. Good customer service would indicate that they would pay for the product to be returned and give me a full refund, including shipping. The product is faulty. Period. I will never order anything from this company again and do not recommend it to anyone based on this horrible customer service and lack of responsibility and ownership.
Example Output: 1

Example Input: I purchased this product for a couple of reasons.  First, with the cost of k-cups, this offered a lower price option.  Second, this allows me to used the coffee of my choice (decaf, organic, water-processed).  The first couple of times I used these, the coffee was very weak.  I opened a regular k-cup that I had to see if there was a difference in grind size from what I was using; there was not.  Then I poured the contents of the k-cup into my disposable k-cup and it would not fit.  Apparently, the disposable cups hold less coffee, which could account for the weakness.  I also noticed that the disposable cups leak around the rim, and I often get grounds in my cup.  I started packing as much coffee as I could into the cups, to where I could barely get the top on.  This made a much better cup of coffee.  However, they still leaked, there were still grounds in my coffee, and it make my Keurig run MUCH slower.  Not to mention the cleanup...  My business uses a Keurig so that all of us can brew the coffee of our choice, and we also have a couple of tea and hot chocolate drinkers.  Everytime I use the disposable cups, I have to wipe down the machine, drip tray & my cup.  I also have to clean out the interior of the cup recepticle so that the next person doesn't have to put up with my leftovers.  All in all, these were a nice idea, but the amount of work they require makes paying a little exta for the convenience of regular k-cups more attractive.  I will probably use up what I have and then go back to the regular k-cups or find a more landfill friendly solution.
Example Output: 3

Example Input: Baby white popcorn from Wabash Farms pops nicely, has no meanacing hulls to get into your teeth, and is very tasty. What more could you ask from a popcorn? I highly recommend this product. At least a four star.
Example Output:
4