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 tested this one on my twin 10-month old babies and they liked it immediately.  It was their first beef and their first spinach.  I had already given them chicken and they really like it so they are not vegetarians yet anyway.  Mostly I wanted this product for the spinach and the higher iron content.  Somehow they made this particular flavor brand tasty for babies.  I like getting these by the case rather than buying them a jar at a time at the store since 2 babies eat so much.  It's good to keep several flavor brands around too I think, to give your baby a variety.  I'm sure I'll get another case when this one is finished.  Ingredients per the label: Water, Organic Carrots, Organic Finely Ground Beef, Organic Spinach, Organic Garbanzo Bean Flour, Organic Tomato Paste, Organic Whole Durum Wheat Flour. CONTAINS: WHEAT.  This has 110 calories, 31% protein, 100% vitamin A, 8% vitamin C, 4% calcium and 4% iron.  I've been informed that the percentage of daily needs met is based on an adult.

Ex Output:
3


Ex Input:
For those who love salt and vinegar potato chips, this is the one to choose. The flavor is zippy and tart, with no unpleasant chemical aftertaste like the less "natural" versions of this snack. The 2-ounce bags are just right to share at lunch. The chips are a little greasy, and that's why I've given them 4 stars instead of 5.

Ex Output:
4


Ex Input:
I love these chips so much... and I can't get over how delicious each variety is!! The price here is AWESOME too!

Ex Output:

5