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: My dog thinks he was born into the gentry and is entitled to fine dining each evening.  Accordingly, he will not eat plain kibble.  A scoop of this on his dry food, a little water to make gravy and we're good to go.  Ordering a case from Amazon was way easier than picking up individual cans at the pet store, too.  All in all, a success for us.
Example Output: 4

Example Input: Yum!  All the convenience you expect with a K-Cup with all the flavor of real hot chocolate.  The kids love it, and so will you!
Example Output: 5

Example Input: As a professional potato chip muncher, I see these as thee very BEST on the market. Rich taste and flavor!! Almost impossible not to finish the entire bag.The true meaning of decadence!
Example Output:
5