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. 

Ex Input:
I've tried all three new 'Dark' offerings from Gevalia and I think this is the best one from the three. Gevalia finally came up with coffee worth serving to your guests. Coffee has an earthy bold taste with little to none bitterness and no metallic after taste; it actually leaves a nice smooth tasty chocolaty after taste.  The pack comes with 12 big T-discs that will brew 8 ounces of coffee. This coffee will delight those who love the darker roasts.  Update: I am on my 5th cup of this coffee and it was really grown on me (changing from a 4 to 5 stars); it is quite tasty and smooth. This is one coffee that will truly satisfy the void that Sbux left. There will be some that will say that this is not the same as Sbux and it isn't! Try the coffee and give it a fair taste without trying to compare it to anything else you may find yourself quite surprised at the findings.  Highly recommended and definitely will be buying this one again.

Ex Output:
5


Ex Input:
We have played this with three adults.  fun game that does not take too long to play.  makes you think and plan only to have someone else mess up your plans.

Ex Output:
5


Ex Input:
All of the positive reviews led me to believe this popcorn was going to be really great. Truth is, I am disappointed. The popcorn kernels are tough, chewy and lack any great corn taste. I want popcorn that snaps when you bite into it.  I will go back to buying the premium Orville Redenbacher's brand at my local grocery.

Ex Output:

2