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 have three Newfoundlands so we go through a lot of food! One of the dogs has had severe health issues and since we've switched from commercial kibble to home made food, he's thrived! He gets regular blood tests to monitor the drugs he's on and they have been perfect since we started on Sojos! It will not cure his issues, but he has more energy and he can't wait for meal time! The other two are glowing with health as well! All three dogs coats are shiny and they have tons of energy (for a Newf!)
Example Output: 5

Example Input: I ordered this plant for my seven year old daughter. She was extremely excited to get it so I even ordered the express 1 day shipping, which I paid over ten dollars for, and it still took over a week to reach my house. Once it got to my house, I opened the box expecting it to be a fully established plant, which would look similar to the picture shown. This is not the case. It came as a pot, a bag of soil, and a damp paper towel with a VERY small plant inside...maybe 1 inch long. There were absolutely no care or planting instructions or anything like that at all. We were pretty disappointed. However, I was able to plant what was there in the dirt and it seems to have survived and looks a bit better now. My daughter is happy with this plant now, but it was a rough start.
Example Output: 2

Example Input: I heard of these through my weight watchers magazine. They a had a $5 coupon code so I figured "what the heck!". WOW -- pop chips are amazing - every flavor is AWESOME! I particularly liked the salt & pepper. If you want crunch and flavor - these are for you!!
Example Output:
5