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 have been looking at this product for a couple months and finally gave in.  First of all, the name got my interest!  The taste is delicious BUT I'm having problems with the directions!  Haven't figured out if it's actually a hot beverage or do you put it in a hot beverage?!?!?!?!?  It has a scoop (small) and says to put that in a cup (instructions for 8 oz.) and then put a couple "shots" of hot water!  Shots of water????  And you can add frothing milk.  Hum!  Confused but I guess I will work with it.  Hope it doesn't take the whole container (very large) to figure it out. I would have given it 5 stars had I understood the instructions!
Example Output: 4

Example Input: I am a fan of Silver Palate cookbooks and was delighted to see this sauce on the grocery shelf. After getting it home and warming it in a saucepan, I gave it a taste. It was so salty, it was inedible. (And I am not reluctant to use salt.) 660 mg of sodium per 1/2 cup? Are they serious? The salt overpowers any subtle flavors in the sauce. With hypertension representing a major health problem, this is irresponsible. It leaves a bad taste in more ways than one.
Example Output: 1

Example Input: thanks for having it sent to me promptly. i was very happy to be able to order it online and get it the next couple days.
Example Output:
4