Classify the given hotel review based on the sentiment it expresses into two classes: negative and positive.

Ex Input:
I recently stayed at the Hard Rock Hotel in Chicago while in town for business, and enjoyed my stay very much. I stayed in a room with a king bed, which was very comfortable. The room had all the things I needed for my stay, which was nice. The only thing is I think there was a party on my floor, but they quieted down quickly enough. My room even had an internet connection! I also had dinner one night at the China Grill, and it was an amazing meal! Overall, I had a great stay, and will return next time I am in Chicago.

Ex Output:
positive

Ex Input:
Under the gloss of a nice building, friendly staff, and a wild set of items in the minibar, this is somewhat below-average hotel. In particular, the bed and chairs were some of the least comfortable I ever encountered. After two nights, my wife and I were practically cripped by bed pain. We complained to the staff and were immediately offered the chance to switch to a different room, but the other room was furnished identically. The owners of the Omni need to stop spending money on bath salts for the rooms and invest in the basic comforts. I should not be lying on the floor, trying to unkink my back, thinking longingly of the last Red Roof Inn I visited.

Ex Output:
negative

Ex Input:
I would NOT recommend staying at the Swissotel in Chicago. I was travelling with a friend and we arrived at different times. She had booked the hotel but had added my name to the reservation since I would be arriving first. The "night manager" at the hotel was extremely rude and told me I could not check in since they could not find the note about my name being on the reservation. (this was THEIR mistake) They told me I could sit in the lobby for 4 hours until my friend arrived. They did nothing to try and help me until I stood there and complained for twenty minutes. I can't believe that a "manager" would treat a customer this way. There are other great hotels in Chicago. This hotel is not worth the aggravation!

Ex Output:
negative