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: It may be all natural but it didn't have a natural taste to me.  The can size is small and the calories were more than I thought there should be.  I like the mild carbonation ok but I wouldn't switch from orange juice.
Example Output: 3

Example Input: Green Mountain "Nantucket Blend" K-Cups make a very good cup of coffee in my <a href="http://www.amazon.com/gp/product/B000AQPMHA">Keurig B-40 B40 Elite Gourmet Single-Cup Home-Brewing System</a>. This is a very smooth tasting brew that my wife prefers over the <a href="http://www.amazon.com/gp/product/B0029XDZIK">Coffee People, Donut Shop K-Cups for Keurig Brewers (Pack of 50) [Amazon Frustration-Free Packaging</a>] I generally drink in the morning.  These are good on both "Small" and "Large" cup settings as well.  Highly Recommended!  CFH
Example Output: 5

Example Input: "Sugar in the Raw"(tm) Please Harvest Cane w/o Burning To be delivered to: HC&S Dear "Sugar in the Raw" folks,  We who buy your product care about the environment. And we'd like to know that you care too. When you burn the cane fields on Maui, it adds to the CO2 and worsens climate change. And the smoke from your burning is damaging the lungs of your workers, your workers' children and the residents of Maui.  We love your product and want you to change to no-burn harvesting so we can continue to buy it, knowing we aren't contributing to Global Warming and lung disease.  [...]
Example Output:
5