Instructions: Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.
Input: I had purchased this deal of off groupon. Lets just say we found a bunch of hidden treasures. when We layed down to sleep in our bed. We lifted our blanket and found very distubing spotting on our bed (attached in photos), we immediatly called the front desk. The only thing they offered was a new set of sheets. when the room service men came to change the sheets he brought us another one with a big red stain on it and quickly/hid changed it before we seen it and he apologized and offered to bring us new ones once again. we denied since it was so late and just slept on the sheets the appeared to be clean. Then next day i eagerly showed the fronk desk and manager the photos, and they offered me a ($68) refund. I was very dissapointed,and dirty sheets that made us very uncomfortable and sleepless and I broke out on my face with ACNE (i never had a acne or skin issues) im positive something in those dirtyy sheets. We drove 4.5 hours to enjoy Chicago and we stayed @ the hard rock based on reputatuion, and unfortunitly we were very disspointed. it was DISGUSTING! I then wrote a Email to management and HEARD NOTHING BACK. NOT even a response or apology. I just really expected alot more.

Output:
negative