Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This item stinks - literally!

I purchased this item in a Thomas the Tank Engine version. While my son enjoyed the activities, the odor from the Suprize Ink was unbearable. The family had headaches and we had to wash my son's room - walls, furniture, bedding, etc. The stench was still there. We finally had to steam clean the carpet to remove it. I worry about the toxicity of the marker because of the strong odor. I don't know if My Little Pony will have the same issues, but it is manufactured by the same company.