In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good.

Ex Input:
Even with small containers, they don't fill them up. These little tins are less than half filled and at the price charged it seems a rip-off. Is there some exotic ingredient as costly as gold contained in those tiny squares? Or how about the cereal ploy, they were filled at the factory but settled in transport. Can manufacturers be honest in their dealings?

Ex Output:
2

Ex Input:
The worst!!! it is just plan awful bitter and strong and you cannot taste the Hazel Nut flavor at all!!!!! Do not buy this product save your money!!!!!

Ex Output:
1

Ex Input:
I was quite excited to try this product, so I bought 4 packs. We opened one, and I tested a half-tablet. No result. My wife tried the other half. Ditto. The next day, we tried a full tablet, letting it completely dissolve over the entire tongue. I found the tablets pretty tasty themselves, while my wife found them too chalky to enjoy. Anyway, again there was no effect with lemons, chili sauce, etc. Our daughter also had no discernible change in her taste of foods. Happily for me, the company is going to refund me for the other three packages. But I would have preferred that they'd worked. I was looking forward to bringing them out at an upcoming party.

Ex Output:
1