Instruct: Classify Amazon reviews into positive or negative sentiment
Query: none of them worked

I would like to give zero stars since it didn't even work! I thought this would be a great item for our baby. I read the reviews and thought that it seemed like a good product (if you got one that worked). So ordered my first one and it didn't work, ordered another and it didn't work either. Needless to say I am returning the second one and not ordering anymore. I am not sure why Muchkin continues to put out a defective product, it will make me think twice about purchasing their products again.