Instruct: Classify Amazon reviews into positive or negative sentiment
Query: No Help

We purchased 2 of the plug-ins to see if our cats would stop using the floors and start using their litter boxes. The rooms we put these plug-ins are within the coverage suggested by the manufacture. The plug-ins didn't solve our problem, the cats still use the floor at times to relieve themselves and this was just 1 foot from the plug-in.