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.

Example 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: 'im looking for a cafe food restaurant and it should have a cheap price range'
System: 'Subway, which serves cafe food, is an outstanding restaurant. It's in the cheap price range.'
User: 'i want to know the phone number and the area its in'
System: 'The phone number of Subway is 01223461323. The price for main courses ranges from 1 pound 99 to 5 pounds 60.'
User: 'thank you good bye'

Example Output: Cheap

Example 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: 'um pub'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Museum of Classical Archaeology, or the Regency Gallery.'
User: 'no'
System: 'The Bakers is an outstanding pub.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'sil'
System: 'What part of town do you have in mind? For example, central, or Fen Ditton.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Chesterton, King's Hedges, or New Chesterton area.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Arbury, Chesterton, or Trumpington area.'
User: 'um any part of town'
System: 'The Bakers is a great pub.'
User: 'it doesnt matter'
System: 'Are you looking for a venue with a television?'
User: 'internet'
System: 'The Bakers has an internet connection and it's an outstanding pub.'
User: 'okay um what is the phone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'sil'
System: 'The Bakers is a great pub.'
User: 'thank you goodbye'

Example Output: Don't Care

Example 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: 'im looking for a fast food restaurant'
System: 'What part of town do you have in mind? For example, Cherry Hinton, or Newnham.'
User: 'sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Folk Museum, Emmanuel College, or The Fitzwilliam Museum.'
User: 'i dont know'
System: 'Are you looking for somewhere near a particular venue? For example, Old Schools, or Wandlebury Country Park.'
User: 'unintelligible'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Churchill College, or Primavera.'
User: 'no'
System: 'Burger King, which serves fastfood, is an outstanding restaurant.'
User: 'no'
System: 'Burger King is an outstanding restaurant and it serves fastfood.'
User: 'can i have the address'
System: 'Burger King is located on The Grafton Centre.'
User: 'thank you goodbye'

Example Output:
Cheap