The input is a conversation between an automated system and a user looking for suggestions for pubs, restaurants and coffee shops in Cambridge. In the dialogue, the user may provide some criteria for the type of place they want such as price range, cuisine, etc. Given such a dialogue, output the price range the user if looking for which can take one of four values: Cheap, Moderate, Expensive and Don't Care. Output cannot be any other value than the four values. Note that if the user asks for the prices of items provided at a pub, restaurant or coffee shop but doesn't mention the price range they are looking for then the correct classification will be Don't Care. If the user does not mention a particular price, the correct classification will be Don't Care.

Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'ah hi ah i am looking for a thia restaurant'
System: 'Would you like thai or X food?'
User: 'and it should be in the expensive price range'
System: 'Would you like thai or X food?'
User: 'a thai food'
System: 'Are you looking for somewhere near a particular venue? For example, King's College, the Museum of Archaelogy and Anthropology, or Wandlebury Country Park.'
User: 'im looking for a thai restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Jesus College, or Sheep's Green.'
User: 'a country park'
System: 'Can I help you with anything else?'
User: 'unintelligible college'
System: 'Can I help you with anything else?'
User: 'ah im looking for a thai restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Milton Country Park, Lamma's Land, or Trinity College.'
User: 'im looking for a thai restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Chesterton, or riverside area.'
User: 'ah in the trinity college'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Kettle's Yard, or the People's Portraits Exhibition.'
User: 'a castle hill'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Saint Catharine's College, or Williams Art and Antiques.'
User: 'thank you good bye'


Output: Expensive


Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'im looking for a restaurant in cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, the Gallery at twelve A High Street, or Primavera.'
User: 'im looking for a restaurant in cherry hinton in any price range'
System: 'HK Fusion is a great restaurant and it's in the Cherry Hinton part of town.'
User: 'no'
System: 'HK Fusion, which is in the Cherry Hinton part of town, is an outstanding restaurant.'
User: 'what is the address and phone number and what type of food do they serve'
System: 'HK Fusion, which serves chinese food, is on 21 Burleigh Street. Its phone number is 01223355909. The price for main courses ranges from 5 pounds to 8 pounds.'
User: 'what is the address and phone number'
System: 'HK Fusion is on 21 Burleigh Street and its phone number is 01223355909.'
User: 'thank you goodbye'


Output: Don't Care


Input: Consider Input: System: 'Thank you for calling the Cambridge Information system. Your call will be recorded for research purposes. You may ask for information about a place to eat, such as a restaurant, a pub, or a cafe. How may I help you?'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap.'
User: 'noise'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'expensive'
System: 'Caffe Nero, which is in the expensive price range, is a great cafe.'
User: 'serving any kind of food'
System: 'Caffe Nero is an outstanding cafe and it's in the expensive price range.'
User: 'noise'
System: 'Can I help you with anything else?'
User: 'what kind of food'
System: 'Caffe Nero serves italian food.'
User: 'whats the phone number'
System: 'The phone number of Caffe Nero is 01223307728.'
User: 'whats the address'
System: 'Caffe Nero is on 11 Market Street.'
User: 'noise'
System: 'Caffe Nero is an outstanding cafe.'
User: 'do they serve coffee'
System: 'Caffe Nero is a great cafe.'
User: 'do they serve coffee'
System: 'Caffe Nero is an outstanding cafe.'
User: 'what do they serve'
System: 'Caffe Nero is a great cafe.'
User: 'whats the address'
System: 'Caffe Nero is located on 11 Market Street.'
User: 'thank you goodbye'



Output: Expensive