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: Always wanted to make my own hummus and eggplant dip - this brand of tahini I'd never tried before or seen in supermarkets, so I decided to order and try it....excellent by itself or in recipes! Highly recommended.
Example Output: 5

Example Input: Found these while looking for good, cheap, low-calorie snack packs to buy in bulk for my office.  After my first shipment, I decided to have two boxes shipped to the office monthly via subscribe & save.  My next shipment arrives in two days. I'm so excited!  Gotta have my pop chips...
Example Output: 5

Example Input: ; the problem with this mix -- and to mind, the only problem! -- is the inclusion of one or two slightly sugary little... things. This provides an experience of, well, repugnance, at least for me; I've never been one to mix the sodium and the glucose, and this surely ain't converting me. ESPECIALLY when they're in the same bite/handful. Ugh.  Otherwise, this mix is really yummy. It all tastes rather waxy, and I'm sure is not the healthiest food in the world (though you could do worse), but its a well combined mixture.  But then again, I've got to sort of work my way through at a crawling pace, because I must grab a handful, and then separate the rejects. Maybe I'm just neurotic, or maybe they made A FATAL MISTAKE AND SHOULD BE PUNISHED.  Oh yeah, like the last reviewer, I too got 'em at Costco.
Example Output:
3

