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: Go to Costco, and you can buy lower than this  price per oz. Currently $32 ($3 off regular $34.99)+ tax for big size = 0.83$/oz.  Besides, it is more convinient to return if you kid does not like this formula  Be careful, many times some sellers over price a product, and still make the product rank in the best sellers.
Example Output: 1

Example Input: Coconut Water with a splash of Pineapple  This is refreshing!  It's sweet, but not too sweet.  The coconut flavor isn't pronounced, and the pineapple isn't so overpowering that it tastes like syrup.  It's clean tasting.  According to the packaging, "it has five essential electrolytes, more potassium than a banana, no fat, no cholesterol, and no preservatives."  There's a smidge of fiber, 0.8 g of protein and 16 g of sugars.  I suspect most of the sugar comes from the pineapple, but "cane juice" is one of the ingredients, too. The 8.5 fl oz carton comes to 75 calories.  If you sign up for subscribe & save, it's less than $1 per carton.  Actually, the carton is the only thing I don't like about this drink.  It's sort of hard to drink directly from because there isn't any air getting let in when you drink, which makes a vacuum.  This was solved by pouring it into a glass.  *whew*  This was good.  I will definitely get more, and I highly recommend this to people who like pineapple juice.
Example Output: 5

Example Input: I purchase almost daily from Amazon and recommend Amazon to my friends constantly. I think that makes me a very good customer. I have a very serious concern. When Amazon sells pet food and/or treats made in China they must be disclosed on the Amazon page as "MADE IN CHINA". No one who loves their pet will buy them, but Amazon will at least give us a fair chance to protect our beloved pets from these poisons imported from China. As a loyal customer, I expect Amazon to protect me and my loved ones from hidden threats. Amazon MUST disclose the country of origin for ALL food products! If Amazon is too ashamed to disclose the source, then Amazon should not sell it!
Example Output:
1