Given the task definition and input, reply with output. 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.

You should monitor your dog very carefully if you give him/her these chews. One of our dogs died as a result of eating these chews, and the other three were very ill for two days. This product is very difficult for dogs to digest and can result in blocked intestines and infection. Since the package did not contain any warnings, we thought they were harmless. Be very careful if you buy these for your dog.
1