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: This has a great rich taste. Remember this is ground whole leaf, so the tea is stronger than you may expect.  Not overly sweet and dissolves readily.  I use it during workouts mixed with ice water in a Polar bottle.
Example Output: 5

Example Input: Oh my gosh.  I bought this tea and drank my first cup in the late afternoon.  By evening I was having the worst stomach cramps and diarrhea.  I belatedly looked at the ingredients and the first one is senna leaves.  During internet research I discovered that some individuals may experience discomfort or cramping after using senna products.  Also the following admonition - don't take senna for more than a week or so or your body could end up relying on it to contract your bowels.  Side effects can include: *diarrhea *intestinal cramps or gripping pains *rash *severe weight loss  Senna should not be used by persons with Crone's disease, Diverticular disease and other similar diseases.  Senna is not a daily or causal supplement and excessive use can cause liver damage.  I wanted to die my insides hurt so bad.  Any weight loss you may accomplish with this tea may not be worth the pain.  Be aware before you use.  I threw my remaining 29 tea bags away!
Example Output: 1

Example Input: I was not overly impressed with this entry into the 'natural' soda sweepstakes. The flavor was OK, but it was achingly sweet. I enjoyed the small size, since it would be a better alternative to younger folks.  But I would think twice because of the over-keening sweetnes.
Example Output:
3