You will be given a definition of a task first, then some input of the task.
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.

I really loved this story. I didn't even realize until I was finished that it was loosely based on real events and real people. This was a true love story during a time that saw too many obstacles. I loved the characters and the sense of place. Well done!
Output:
5