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.

Example Input: I love this color and purchase it often, but this is the first time I have purchased from Amazon. The pro: it brightens up my face without being too sparkly and stays on all day. The con (and this seems to be exclusive to the Amazon version): it arrived in a much looser powder than the version I have purchased for years, in-store, which makes it messy to apply. Otherwise I would give it 5 stars.
Example Output: 4

Example Input: It's so awesome to be able to inflate super quickly and use right away with such comfort! I can't wait to use in my tent while camping and not have to worry about blowing up the air mattress for hours. Plus can be used elsewhere suck as the beach or pool. Very happy with the quality, and comfort! Very happy with this purchase!
Example Output: 5

Example Input: Not works. It is easy to use and non toxic indeed, yet this formula will not kill any roaches or any insects. It only provides a strong scent that insects hate and not pass by; however, the scent will dilute not working in the following day.
Example Output:
3