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.

Ex 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: 'breathing'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'expensive restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Old Schools, or the Ruskin Gallery.'
User: 'romsey area'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or riverside area.'
User: 'romsey are'
System: 'Are you looking for a venue in the Girton or Romsey area?'
User: 'romsey'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'background noise'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306 and it's in the area with the postcode CB1 2QA.'
User: 'phone number and postcode'
System: 'The phone number of the Backstreet Bistro is 01223306306 and it's in the area with the postcode CB1 2QA.'
User: 'thank you good bye'


Ex Output:
Expensive


Ex 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: 'breathing unintelligible'
System: 'Are you looking for a venue that allows children?'
User: 'noise sil'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'no breathing thank you good bye thank you good bye thank you good bye'
System: 'Are you looking for a venue with a television?'
User: 'thank you good bye'


Ex Output:
Expensive


Ex 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: 'hi im looking for an english restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Fen Ditton, or King's Hedges area.'
User: 'uh'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Holy Trinity Church, or Old Schools.'
User: 'unintelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, or the Museum of Classical Archaeology.'
User: 'unintelligible area'
System: 'Carringtons is an outstanding cafe and a great restaurant and it serves cafe food and english food.'
User: 'ok can i get the address please'
System: 'Carringtons, which is in the central part of town, is on 23 Market Street.'
User: 'and the number phone the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'ok thank you'
System: 'Carringtons is a great cafe and an outstanding restaurant and it serves cafe food and english food.'
User: 'good bye'


Ex Output:

Don't Care