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 loved this tea! It is refreshing and delicious with or without sweetener. A great buy! I would definitely recommend this product!
Example Output: 5

Example Input: First off,  let me state that I am not a fan of decaffeinated coffee of any type.  But I often have guests over who ask for de-caf, so I gave this a try.  While I agree with some other reviewers who have stated that there is a certain "different" taste about this blend, for me, it was not a bitter taste, but instead, a good, strong flavor that mimicked the strong (real) coffee taste I enjoy.  I had a second cup, and the flavor grew on me even more, and I thought: "it really is delicious for a decaf."  The aroma isn't truly satisfying (why does this always happen with decaf?) but I think many decaf drinkers will be used to that lack.  The package had to be snipped open with scissors --this is tightly packed!-- and then I just poured it into a zip loc for storage in the fridge.  I'll stick with regular coffee, but I'm sure my de-caf loving friends will enjoy this.
Example Output: 4

Example Input: I've made these twice in cupcake form, topped with red jam and powdered sugar. Of course it doesn't taste like a normal vanilla cake... more grainy in texture, with a subtle sweetness, and some  spice. But I think they are super tasty. They didn't suffer from the weird chewy texture I often run into with rice-flour based mixes. Also used EnerG egg replacer with no problem.
Example Output:
4