Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DID NOT WORK; NOBODY CONTACTED ME

BAD PRODUCT. DID NOT WORK. ALTHOUGH I EXPECTED SOMEONE TO CONTACT ME OR TO SEND ME THE PRODUCT THAT WORKED, I HAVE HEARD NOTHING. IT IS UNLIKELY THAT I WILL PURCHASE AGAIN. YOUR COMPUTER SKILLS ARE OKAY, YOUR PEOPLE SKILLS ARE NOT.DR. GREENSTONE