Instruct: Classify a review into positive or negative sentiment.
Query: Works like magic

My 3 year old cocker spaniel was always pulling and chasing things on walks. It made walking him a tiresome chore. I had enough and had to try the Gentle leader after hearing so many good things about it. Well, it took several days for him to adapt to the collar, but now he walks without any pulling and (usually) doesnt chase anything. He doesnt even fight it when I try to put it on him anymore. Magic!