Instruct: Classify a given review into positive or negative sentiment.
Query: This Does NOT Work-AND They Won't Let You Return It!

I tried this with two different brands of contact lenses. Gave it multiple tries on multiple days. I could not get the contacts to come out, which is what I wanted it for. When I asked to return it they would not approve it-they suggested I get another, Why would I want two that don't work? Don't waste your money.