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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'looking for a cheap pub with internet connection'
System: 'The Bakers, which is a great pub, is in the cheap price range with an internet connection.'
User: 'where is the address'
System: 'The Bakers is on 176 East Road.'
User: 'phone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'are children allowed'
System: 'The Bakers, which allows children, is in the cheap price range. It has an internet connection and it's an outstanding pub.'
User: 'thank you goodbye'


Ex Output:
Cheap


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: 'i am looking for a cafe'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'it doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, the Saint Barnabas Press Gallery, or Williams Art and Antiques.'
User: 'not really'
System: 'What type of food would you like? For example, East asian, Greek, or Seafood.'
User: 'breakfast'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, central, or Trumpington area.'
User: 'how bout trumpington'
System: 'There is no cafe in the Trumpington area.'
User: 'how bout cherry hinton'
System: 'Are you looking for a venue in the Cherry Hinton or Trumpington area?'
User: 'cherry hinton'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'im looking for a cafe'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'london'
System: 'Would you like a cherry hinton area, or you don't care?'
User: 'i dont care'
System: 'Would you like a moderate price range, or you don't care?'
User: 'i dont care'
System: 'What type of food would you like? For example, Northern european, Japanese, or Vegetarian.'
User: 'cafe'
System: 'What type of food would you like? For example, International, Mediterranean, or Traditional.'
User: 'traditional'
System: 'There is no cafe serving traditional food.'
User: 'thank you good bye'


Ex Output:

Don't Care