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: We've only used this once, but it kept us awake most of the night.  We were surprised because it's decaf, but we couldn't sleep for hours after going to bed.  Tastes good, though.
Example Output: 3

Example Input: We cant say enought about the Gluten Free Bisquick.. My husband and all three kids are allergic to Wheat and we are on a strick Gluten Free diet in our house.. I have tried every product out there to make pancakes, waffles, biscuits and even chicken fingers and was so pleasantly suprised that this little box does it all and does it all WONDERFUL... Pancakes are wonderful, Waffles are Great, Chicken Fingers are the best Ive made and the biscuits are delish.. Cant ask for anything better.. I only wish you could buy it ina bigger box and it was a little cheaper but we are a HUGE fan...
Example Output: 5

Example Input: Arrived in 6 days and were so stale i could not eat any of the 6 bags!!
Example Output:
1