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:
My son loved all the sauces.  The only sauce that was way too hot was the Insanity Sauce, use a teensy tiny bit when using.

Ex Output:
4


Ex Input:
I was looking forward to this tea, but unfortunately the mint overpowers the hibiscus and essentially makes this just another kind of mint tea.  I prefer the hibiscus tart be the star of the show in a hibiscus-based tea (aka "herbal infusion") and in my opinion, mint and "tropical" don't mix and now know going forward to pay more attention to the ingredients.  Still worth 3 stars because it can be a refreshing tea on a hot day, but just not a great tropical/hibiscus tea.

Ex Output:
3


Ex Input:
Looking forward to receiving this product and when it arrived it was covered in walnuts.  Unfortunately, tree nuts are an issue and I wish that there was information about nuts on the items listing.  I will bring it to work for the staff to enjoy.  Addendum:  Staff loved the babka.  Picture of product now shows nuts on top, prior listing did not.  5 stars for the babka and 3 stars for the lack of ingredient list. (At least major allergens).

Ex Output:

5