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.

Ex Input:
Been using the battery for over a year. the first one I got was busted and the company was quick to get another one back to me. The new one worked well for a while but now it is doing weird things like I leave it charged in the wall for several days and only 2 dots are blinking, it is not as fast to give out the charge so it takes a while to charge. I honestly stopped using them because it was so annoying to deal with all of these issues and my husband has a battery we like better.

Ex Output:
2

Ex Input:
I bought this knife December 2018 and has been great thus far. The only downside is that the clip used to attached the knife to a pocket or belt is held by 3 small screws. With time and the weight of the knife one of the screws stripped and no longer held the clip in place. I remedied this issue with a drop of gorilla glue. Now it doesnt move and holds the clip and the knife in place.

Ex Output:
5

Ex Input:
The Peppermint & Lavender are my favorite. Separately or blended together are great! The Joy blend is ok...very light for the diffuser. The Rose scent is interesting, still figuring out how to use it...overall a good set to have on hand...I do love this brand of oils, most have worked great!

Ex Output:
4