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:
We first received Stonewall pancakes as a gift. We have ordered them 2x on Amazon who has the best prices. Highly recommend this product. Will return here to buy more...

Ex Output:
5


Ex Input:
For those of us on a low carb diet these little tablets are just the thing.  Two years ago I started cycling again after many years but was having heart arrhythmia after longer rides in high heat.  I was drinking plain water but did a little research and thought electrolytes might be the issue.  Gatorade wasn't an option because it is so loaded with carbohydrates so I looked around for a low-carb alternative.  The "zero carb" sports drinks didn't help so what to do?  One day I ran across these at my bike shop so tried a tube of them.....voila!...problem solved!!  I've shared them with two friends in particular whose problems with leg cramps were resolved while using these.  These guys got it right -- they are superbly formulated and simply work.....

Ex Output:
5


Ex Input:
These are the best glutin free ritz-like crackers...but that's not exactly a praise.  The cheese are not not bad, but the plain ones taste like egg.  A lot of gluten-free breads and crackers use egg as the lacking "glue"...and you can always taste it.  Yuck! All of that being said, the plain ones are ok when made into peanut butter sandwiches and all of the crackers are pretty good with a dip or chicken/tuna salad...sigh.

Ex Output:

3