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

Input: Consider Input: Stayed at the Chicago Hilton for three nights and from the minute we walked through the door I was very impressed. Check-in was quick, easy and I was very glad that we were able to check in despite being earlier than the advertised check-in time. We were given a twin room with two bathrooms which was brilliant. It made getting ready to go out much quicker! The hotel location is great opposite the park, which is a must see. Although located on South Michigan Ave it is easily within walking distance of all the shops and sights of the whole of Michigan Ave. Would also recommend the street one block back from Michigan Ave for good shopping. For breakfast I would recommend grabbing a muffin, croissant or bagel from the bar just past reception rather than going for the more expensive breakfast in the restaurant. For evening entertainment Kitty O'Sheas is a must. Typical Irish bar with good drinks and live music. Finally the bed at Hilton Chicago is the most comfortable bed ever. I would have taken it home if I could! Definately made for a good nights sleep.

Output: positive

Input: Consider Input: Me and my wife stayed at the Omni hotel in Chicago for a customer training at a nearby hospital. We ended up only staying for 2 nights and the service was awful here. At first once coming into the room, there was a mildewy smell in the air, which we were fortunate enough to bring a potpourri spray with us just incase. The continental breakfast each morning was terrible as well. The eggs were runny and the coffee was not hot at all. To make matters even worse, the room service attendant did not get to our rooms until the middle of the afternoon, when my wife was back from exploring the city. This was simply unacceptable by any standard.

Output: negative

Input: Consider Input: Upon entering my hotel room at The Palmer House Hilton I immediately turned my nose up at a foul odor coming from the bathroom. After placing my bags on a poorly made bed I walked into the bathroom to find the last visitor had failed to flush the toilet. I immediately called room service and asked for a new room. They apologetically told me there were no other rooms available but would send someone right up to handle the mess. After oh around a half hour of waiting a very angry maid knocked at my door. She seemed very irritated to have to deal with the mess and looked at me as if I should have been the one dealing with it. After the room was cleaned up she turned to me as if asking for a tip. I hesitated and she angrily stormed out of the room. I thought things would run smoother and tried to relax with an ipod. Yes you can use your ipod in the room however what they fail to mention is the constant white noise because the signals are so poor. And nothing could compare to the remote control heating and air. When I was able to get the buttons on the remote to work the temperature seemed to change on its own. If I wanted hot air it would slowly get colder and vise versa. After giving up on a nice television program I decided to retire to bed. Egyptian sheets? Right! All I can say is I found myself early to check out and in a new hotel within the next hour. If you value your back do not rent a room from this hotel.
Output: negative