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: love the ease of having green natural tea anywhear any time . tastes great i love this stash green tea
Example Output: 5

Example Input: This mix makes GREAT belgian waffles.  We tried biscuits and pancakes and we do far better form scratch with a standard GF flour.  It does make seriously great waffles though, and we go GF/DF on these.  The waffles freeze extremely well and reheat in the toaster quite nicely.
Example Output: 3

Example Input: Some issues with the product -- some of the pods are not sealed properly so the grounds spill out (either before use or after use into your coffee); it is wasteful that each pod is individually sealed -- would rather they be packaged like the Senseo pods; the pods don't really fit my Senseo coffee maker -- too fat for the single and too small for the double which causes problems sometimes when I brew a cup.  On the plus side -- price.
Example Output:
3