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

Ex Input:
Stay away from the Hyatt Regency Chicago. I recently had to spend the weekend in Chicago on business, and expected this hotel to provide an experience beyond that of some seedy dive in the bad part of town, but alas, I was left disappointed. I arrived in the afternoon, my flight having been delayed, ready to rest for a few hours before starting my evening. Unfortunately, my room was not ready. It should have been ready hours earlier, but perhaps the inclement weather that had delayed my flight had also delayed the hotel staff. In any event, I was advised to wait in the bar, creatively named BIG Bar. They seemed annoyed that I wanted only water, not seeming to understand that it was not by my own choice that I spent time in their hideously noisy establishment--I wanted only to relax in my room. I waited there for over an hour before checking back in at the front desk. Was my room ready yet? 'What room?' they replied. To my astonishment, it seemed that I no longer had a reservation! How this came to pass, I do not know, and the boy behind the desk was certainly unable to enlighten me. I explained that I was simply waiting for my room to be cleaned, or furnished, or renovated, or whatever they were doing to make it ready, but my words were nothing against those of the almighty computer, who spake "Guest Not Found" or some nonsense and who had the final say in such matters. I requested the manager, who was unavailable, presumably because the staff had not yet managed to get him ready either. Finally, I admitted defeat and slunk out from the hotel, with fewer regrets than I would have imagined, to find a better place to spend the night--a park bench surrounded by pimps and thieves would have been more inviting at that point. As it was, I found another hotel, better priced, better staffed, and with rooms ready for my custom. So if you are looking an experience like no other, book a room at the Hyatt Regency Chicago. If you want a place to sleep, look elsewhere.

Ex Output:
negative

Ex Input:
Sometimes you just can't find fault with a hotel, even if you tried. Such was the case with Sofitel, where we'd never stayed before. It's a sleek, modern, sophisticated hotel with European touches. We spent three days there on a leisure weekend, we had a 29th floor king room looking directly at the Hancock Building, at a total cost including taxes and lugs of about $165 a night. The room was average sized, well-appointed, everything in it worked, and it had a fabulous view of the Chicago high-rise jungle, including snippets of the lake. The public areas were wonderfully decorated. The restaurant served a good breakfast at, for Chicago, reasonable prices. The staff was excellent. My wife broke her ankle several weeks before we visited and was on crutches. The staff loaned us a wheelchair and was very helpful in assisting her.

Ex Output:
positive

Ex Input:
Our first visit to Chicago and I really cannot wait to go back. The hotel was in a great location and every member of staff we had contact with were exceptionally helpful. Particular mention should go to the door staff who were amazingly helpful. The room was clean, quiet and spacious, if only every hotel were like this.

Ex Output:
positive