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. 

Ex Input:
Google "propylene glycol" to find out why.  I bought this product, along with several others, without running the ingredients by my wife first (a nurse of 30 years) she was surprised when she noticed it.. we went a googling, and poured my $50 order down the drain afterwards.  There's "pure" and then there's "not so much".....  from the website:  [...]  Propylene Glycol  A cosmetic form of mineral oil found in automatic brake and hydraulic fluid and industrial antifreeze. In the skin and hair, propylene glycol works as a humescent, which causes retention of moisture content of skin or cosmetic products by preventing the escape of moisture or water. The Material Safety Data Sheet warns users to avoid skin contact with propylene glycol as this strong skin irritant can cause liver abnormalities and kidney damage. Also used in:    Tyre sealant   Rubber cleaner   De-icer   Stain removers   Fabric softener   Degreaser   Paint   Adhesive   Wallpaper stripper  I wrote the company about this concern and they never responded....

Ex Output:
1


Ex Input:
Overall, the bags of popcorn were just like those that you'd get in a regular package of 8 or 12 bags.  However, several bags did not pop correctly (or at all) and had to be thrown out.  Also, many other bags would have a burnt hole after popping.  I realize that some of this variability could be due to microwave wattage, but it was only bags from this large box of Orville Redenbacher's that would do this.  I think when you order such a large box, your chances of getting "dud" bags increase...just something to keep in mind!  Is it worth it to buy in bulk when more of the bags will be duds?

Ex Output:
3


Ex Input:
Good, and reasonable for drink. A product that is good for sleeping and inflamation. I will buy again if the price stays reasonable.

Ex Output:

4