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. 

Ex Input:
I love little white kernels of popped corn.  This was good stuff, but I think I'll try a larger white kernel to pop next time, my preference.

Ex Output:
4


Ex Input:
I really want to like this product because of the great things Newman's have done and the fact that all the proceeds go to charity. I like the fact that the ingredients are all top quality and organic. It looks and smells good too. Unfortunately, none of this matters to my dog Daisy. She just doesn't care for it. Usually she will sniff it and walk away. Once she realizes nothing else is coming her way she will usually eat it but I feel bad since she obviously doesn't care for it. Like I said, I really want to like this product, but my dog has the final say. Sadly, I don't think I will buy it again.

Ex Output:
3


Ex Input:
I first encountered this flavor at an airport magazine stand.  I sampled a couple and was hooked.  I thought this flavor was the best of all in the TicTac line.  On my flight, I was munching on the pack absent-mindedly.  I landed with the idea of buying several packs.  Then came the rude surprise - Grapefruit flavor is not a common sight on TicTac stands - anywhere.  I finally settled on this purchase as the only way to maintain a steady supply.  This flavor of TicTac is best used as a "chaser", following a heavy-duty breath freshening from TicTac Power Mint, the blue color.  Not only is Power Mint effective, it also numbs out my tongue for several minutes.  A follow-up with a single Grapefruit restores my mouth to normality.  I rate Grapefruit as the best flavor, with Watermelon and the new Strawberry Foelds close seconds.  In general any flavor TicTac is effective breath-freshening, but Grapefruit is truly addicting.  TicTac settles the issue that the tongue is a major contributor to sour breath.

Ex Output:

5