Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Is a piece of trash

I buyed this used keyboard because I believe in his optimal conditions, but I reicived a piece of trash, a dirty keyboard with dust, food prints, dog piles. Is a irresponsability and a ofense sale this articles without maintenance.I can't return the keyboard to the seller because I live in Colombia and the keyboard is with me. I had to shop another one in my town.