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.

I received all containers previously opened - all seals were opened. On the top of containers was decent pieces of liver and below that were grisley pieces and a lot of powder on the bottom. I will never buy liver treats from Amazon again. BIG RIP-OFF!
1