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 received the items in a timely manner. Upon receipt, I removed a pack to consume. The pop-tart was STALE and left an awful taste in my mouth.
Example Output: 1

Example Input: This stuff sounded perfect...way too much red dye and no taste according to me and my 3 friends who tried it...kind of salty.  Basically, I would stay away from it.  I am tempted to toss it out, but paid too much to feel right about it...
Example Output: 2

Example Input: I wish I had read the other two reviews here. I picked this up at a local store for about 6 bucks. My dog just ate half of it in 5 minutes and would be done with it now if I had not taken it away. And he is only 5 months old...so an older bigger dog could destroy this even quicker. I can't believe they actually sell these...at that price at least. He absolutely loved it and is quite mad I took it away...but not worth the money.
Example Output:
1