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. 

Example 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.
Example Output: 3

Example Input: i had a second plant to replace the first one. it to came in sad shape, i should of went to a local nursery at least then i would of got a good plant. dont waste your time with this vender.
Example Output: 1

Example Input: Does anyone realize tocopherol usually comes from soy? I'm still hunting for a cracker I don't have to make. Their website is unclear about it's source.
Example Output:
1