Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Smells worse than poop!

I picked this up because there was a coupon for it and I've been trying to find a litter that is more natural... This litter clumps amazingly, but it smells SOUR. I'm used to scooping the cat box, but this litter smells worse than cat feces and urine. I'll definitely be switching back to something less repulsive.