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 gifted this beautiful smart watch to my niece , she loves it, it is compatible with all smart phones, easily adjustable, valuable of money and recommended to to buy
Example Output: 5

Example Input: I always wear a medium so I got a large. The fit was fine but it looked nothing like the picture. The back was not as long as pictured and the "black" was more of a dark gray. It was also extremely see through. I returned it immediately.
Example Output: 2

Example Input: The hair out of the pack is very soft & silky. Hair has a slight smell to it (hopefully it will wash out). The bundle are very thin. Im going to buy a scale because there is no way these bundles are 100 grams. I will be updating after wash then another after install! Update: I was able to wear this hair from mid July to early September. The photos show the hair from initial install to last week on use in order. Hair comes back to life after each wash but starts to get more and more tangles. The hair sheds like crazy the hair wasn't as full as I like but was well worth the price. I will buy again
Example Output:
4