In this task, you're given a review from Amazon. 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, 4: good, 5: extremely good.

Input: Consider Input: This backpack is a really nice size. Not too big or too small. Many pockets and great straps. Lightweight and comfortable. Love that it is a crossbody. Unisex and great for all.

Output: 5

Input: Consider Input: Looks good, easy, easy to assemble. Instructions and parts w/ Hex wrench included were shockingly easy to use and assemble. Overall solid parts, arms a little flimsy. Quality overall is very good. Head rest may prove to short even when adjust to it's highest position for people with broad shoulders and 'normal' torso length. Arms not very sturdy, not adjustable (I missed this in the description--my issue). Overall, for the price, will work for the time-being. Comfortable enough, but not a top tier product--quality = pricing so I'm happy.

Output: 3

Input: Consider Input: This is the second pair of studs I've gotten from this company and I really should have known better. They should include at least one extra earring back with every order. The backs themselves really are impossibly small and impossible to hold onto. Even the average sized fingers are too large to handle these backs. Within 5 minutes of opening the package and trying to put the earrings in, one of the backs is lost forever down my bathroom sink drain. Oh well......
Output: 1