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:
Absolute piece of junk. Display is so dim you can't read it, but that's not too important since it doesn't work at all to begin with. I finally got the metronome feature to work, but that's not what I bought this for. Waste of money.

Ex Output:
1

Ex Input:
These are very good chocks and can be used for small aircraft, cars, other wheeled equipment. The only thing I would caution is to pay attention to the measurements given and actually look at a ruler to make sure the size fits your need. If that size fits your need, they don't make any better than these.

Ex Output:
5

Ex Input:
Wasn't made for an adult. Still used it, but beware if you're over 5'10 and 170 lbs. *update* was issued a partial refund because I wasn't satisfied with product. Great customer service!!!

Ex Output:
3