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 am on a low glycemic index diet to help control my blood sugar and hormone levels. My nutritionist recommended agave nectar as a sweetener since it's GI index is in the low 30's as opposed to honey in the low 50's and sugar in the mid-50's. I've tried supermarkets, health food stores and wholesale clubs. The prices are usually around $13 for a 32oz bottle and this is $19ish for 2x46oz. It's used like honey - substitute 2/3c for every 1c sugar and reduce liquids by 1/4th.  I also use it in a carrot cake recipe (equal substitution) instead of sugar where I substitute whole wheat flour instead of white flour and I don't decrease the other liquids. It's delicious and you'd never know that's it's actually good for you.

Ex Output:
5


Ex Input:
We've only used this once, but it kept us awake most of the night.  We were surprised because it's decaf, but we couldn't sleep for hours after going to bed.  Tastes good, though.

Ex Output:
3


Ex Input:
I eat these tuna cups (or the salmon cups) almost daily.  If you're looking for a nutritious snack, these cups really can't be beat.  If you're a bodybuilder or athlete trying to increase your daily protein intake, these are awesome.  If you're a parent trying to get your kid to eat healthy, getting them to like fish is a great idea.  If you're trying to eat 5-7 meals a day to lose weight, make one of these cups one of your meals, the protein fills you up and makes you feel good.  It also requires a bit of chewing to complete the eating experience.  Why eat a nutritionally empty "100 calorie pack" of goldfish crackers or potato chips when you could have something like this that has only 80 calories and infinitely more nutritional benefit??  I'll eat these alone, straight from the cup, basically anywhere since you don't need to refridgerate and you don't need a can opener.  I'll dump them onto salad, or mix with rice, quinoa, or beans.  Here's the nutrition data off the back (for 1 2.7oz cup) at the time of writing:  Calories 80 (10 from fat) Total Fat 1g Cholesterol 35mg Sodium 15mg Total Carb 0g Protein 18g Omega-3 EPA/DHA 200mg  You really can't beat this for something so portable that requires no preparation or refridgeration.  The package says "in water" but there's a little bit of broth in the cup, and if you squeeze this out or just leave it at the bottom of the cup, you probably cut the sodium down to 10mg.  I highly recommend these tuna cups and the salmon cups as well.  But, avoid the tuna salad, or the flavored varieties if you are looking to get the maximum nutritional benefit.  Those salads and flavorings just add salt, sugar, carbs.

Ex Output:

5