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 was amazed at how good this is for canned fruit (which I normally won't touch).  In particular I adore papayas and mangos.  The fruit juice instead of syrup is also very nice.  The easy pull-top on the can makes this a great item to stash in my desk drawer at work, so that I can have a fruit snack easily even if I was too busy or forgot to bring lunch.  So far I haven't gotten a can that had any problems.  The watermelon isn't crunchy - of course not! - but it's good, and certainly not "slimy".

Ex Output:
5


Ex Input:
Maybe these a better when they're very fresh.  You could ruin dental work if not careful chewing these.  They taste great.

Ex Output:
3


Ex Input:
I did like this product until some jars I found black mold on the inner lids.  I read other reviews, but I thought it must've been a bad batch.  I was wrong.  Earth's Best used to be very good. So I canceled my next Subscribe and Save order.  Then I feedback cancel reason to Amazon.

Ex Output:

3