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: My family spends most of our summer either at a baseball field or at the beach. We have been using this Coppertone product for years and have been pleased with the results. That all ended with this purchase. When I saw it was cheaper on Amazon than the local store I ordered it. The spray is worthless. We've gotten sunburned both times we used the spray from this order. Threw what was left away and will no longer purchase this product from Amazon. If I could give it zero stars I would.
Example Output: 1

Example Input: Love this. Not your normal plain tiles. Better than I expected. Only thing I didn't love was the pushers. They are a little awkward but the beautiful tiles and case make up for that.
Example Output: 4

Example Input: Was very good the first 6 months of use due to the mist expelled off center, once the mist began shooting straight up, it would fall back on to the Unit itself and leave a pool of water and miscalculated the relative humidity of the room since it would be very humid around the unit.
Example Output:
3