Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Yuk! Yuk! Yuk!

Product smells and tastes terrible, bitter! I washed the product when it first arrived, dog wouldn't play with it. After handling it at one point, my hands were bitter. I don't know what it's made of or treated with, but multiple washes and soaking doesn't remove the bitterness. It's going back!