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: I recieved a Keurig K-Cup Brewer for Christmas with sample cups of coffee and tea but no cocoa so I tried this brand and I like them but I haven't tried other brands yet to compare with. I would buy these again until I find one I like better.
Example Output: 4

Example Input: Actually, I love Nonni's chocolate biscotti and would buy them at my local grocer if they had them.  I found these listed at Amazon and ordered two containers.  When they arrived which was during the warmest part of the summer, most of the chocolate frosting had melted and flowed onto the plastic packaging which made eating them very messy.  The worst part which didn't seem to be caused by the heat was that virtually every one of the biscotti's were broken into multiple parts which I attribute to rough handling. I don't know whether this rough handling occurred at Amazon or by the shipper.  I have always liked to buy from Amazon but won't buy any more biscotti.
Example Output:
1