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: Fed to dog and she got violently sick and vomited the whole this up after eating it. Don't buy this product if you love your pet!!<a href="http://www.amazon.com/gp/product/B000ANO3N2">Nylabone Healthy Edibles Bone, Roast Beef Flavored with Vitamins, Regular Size, Triple Pack</a>
Example Output: 1

Example Input: I enjoy them a lot and so does my son. I have to say that this kind is one of my favorites. It is full of peanut butter flavor that you forget that it is only 100 cals. As for the amount you get in the bag, it is more than I expecting so I was very happy.
Example Output: 5

Example Input: I was looking for a natural energy shot that works, and I found it. Steaz energy shot is my favorite!  I recently had gastric bypass surgery, so tons of sugar is a no-no. And I'm also allergic to Sucralose (Splenda) so most other energy drinks are out.  I tried Bazi energy shots and they didn't work as well as Steaz, and definitely didn't taste as well. These have a taste that's almost like Coca-Cola--not bad at all.  If you're looking for natural energy, give these a try.
Example Output:
5