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 would love to say that I have the time to make my son's food everyday. Its not the case. Honestly, I do make it most of the time, but some days, you just don't have the time/energy to get it all done. Enter this product. Before I bought this baby food, I read the reviews and all these people were saying that it has fruit in it, its like a dessert, yadda yadda yadda. The truth is, is that yes, it has a bit of fruit in it, but its not sweet at all. The fruit merely brings out the flavors naturally so that you don't have to add anything else. Its a great product to enter proteins into baby's diet. The consistency is smooth enough that if you wanted to add cereal  to it also, baby will not choke on it. I highly recommend.
Example Output: 5

Example Input: These bars are just the right balance between the flavor of the coconut & the sweetness of the rice syrup. Unfortunately, although the expiration date is in 2013, about a third of mine went bad, or perhaps started life that way. They had a funny, metallic taste, & one even had some black substance on it, which may or may not have been mold. I'm wondering if refrigerating would have prevented this. I highly recommend these bars, but beware of the keeping quality!
Example Output: 3

Example Input: I have been drinking this green tea for sometime and was purchasing it when I was going to Syracuse every summer.  This year I stopped going there and didn't know where I was going to buy my tea until I spotted it on Amazon and purchased it.  I was so pleased  that I could get it, so I am now a happy camper once again.
Example Output:
5