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: Even with small containers, they don't fill them up.  These little tins are less than half filled and at the price charged it seems a rip-off. Is there some exotic ingredient as costly as gold contained in those tiny squares?  Or how about the cereal ploy, they were filled at the factory but settled in transport. Can manufacturers be honest in their dealings?
Example Output: 2

Example Input: Gevalia is the best coffee there is - always mellow, never bitter. I'd never drink any other brand.
Example Output: 5

Example Input: I bought this coffee because several people who also liked my favorite (Jet Fuel or Emeril's Big Intense Bold) liked this one. Typically Sumatra is one of my favorite coffees as well.  I am wondering if they made a bad batch or gave it the wrong label. It is **NOT** bold.  It is extremely mild and smoky tasting.  Not a single member of my family liked it and that's very unusual.  I'm going to contact the company to see if they'll exchange it or refund me.  It is THAT bad.
Example Output:
1