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 am on a low glycemic index diet to help control my blood sugar and hormone levels. My nutritionist recommended agave nectar as a sweetener since it's GI index is in the low 30's as opposed to honey in the low 50's and sugar in the mid-50's. I've tried supermarkets, health food stores and wholesale clubs. The prices are usually around $13 for a 32oz bottle and this is $19ish for 2x46oz. It's used like honey - substitute 2/3c for every 1c sugar and reduce liquids by 1/4th.  I also use it in a carrot cake recipe (equal substitution) instead of sugar where I substitute whole wheat flour instead of white flour and I don't decrease the other liquids. It's delicious and you'd never know that's it's actually good for you.
Example Output: 5

Example Input: I was happily surprised with this product. I read other negative reviews and was honestly disappointed in Betty Crocker gf cake mix so I didn't feel the need to try this. I finally bought it at a whim when I saw it at my local market and I am happy I did. I am a baker at heart and love to spoil my family with homemade deserts and pancakes on the weekends. I have adjusted my cooking and baking to primarily gf for the past year now and am happy when I find a gf alternative that cooks & tastes like "the real thing". Another plus is that I can buy this at my local market (which does not carry too many specialty foods) and don't have to make the extra trip to the higher end store.  I made pancakes today and they were a hit with everyone. Will definitely use it to try other recipes. Only downside is the cost and size of box; very pricey and very small.
Example Output: 5

Example Input: I use this lemon oil to add a few drops to my drinking water for a refreshing change.  The only thing I would like to see done differently is a packaging change, to put in a rubber seal with a drop-control feature, so I could add just a few drops instead of having to be careful not to pour too much in.
Example Output:
3