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 bought this at a local gas station near my house and was excited to try it because I see it everywhere. It was nasty. I will never drink this crap again, I don't care how "good" it is for you. The taste is disgusting and I'd rather just drink regular water. Blah!
Example Output: 1

Example Input: These are delicious crackers, but don't ship well, and many end up broken in the process.
Example Output: 3

Example Input: I bought this water when i was at college for the first week. I felt bad using my roommate's water all the time and i was 7 states away from home. So i ordered this water. It was delicious, but the only complaint i have is that the bottles were REALLY...well...plastic-y. I felt really un-green drinking water out of these HUGE plastic bottles.  So now, i just ask my roommate to buy water for me when she goes home on the weekends. I give her $ 4, she runs to walmart and gets me 2 cases of 30 water bottles. Yay me!  Sometimes i still think about this water, longing for it as i sip my coffee or tea or ramen-juice and say to myself "This would be so much better with talking rain."  Its one college student's battle between deliciousness and eco-friendliness.
Example Output:
3