Instructions: 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: This set of oils is great. Just a few drops...all of them have instant aromatic scent unlike some others out there. Pleasantly surprised with the quality of them. This ended up being a good pick.
Output:
5