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: 'noise sil'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'expensive'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'traditional restaurant'
System: 'What part of town do you have in mind? For example, something in the Girton, riverside, or Romsey area.'
User: 'a traditional restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Downing College, or Great Saint Mary's Church.'
User: 'dont care'
System: 'The Granta Bar, which is in the expensive price range, is a great restaurant. It serves traditional food.'
User: 'no'
System: 'The Granta Bar is a great restaurant, it serves traditional food and it's in the expensive price range.'
User: 'what is the address'
System: 'The Granta Bar is located on University Centre, Granta Place.'
User: 'what is the postal code'
System: 'The Granta Bar is in the area with the postcode CB2 1RU.'
User: 'what is the address'
System: 'The Granta Bar is located on University Centre, Granta Place.'
User: 'thank you good bye'

Example Output: Expensive

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: 'noise sil'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'moderately restaurant'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Kettle's Yard, or Saint Catharine's College.'
User: 'cherry hinton area'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, Downing College, or the Lynne Strover Gallery.'
User: 'cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, the Gallery at twelve A High Street, or the Lynne Strover Gallery.'
User: 'cherry hinton'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, Gonville and Caius College, or Holy Trinity Church.'
User: 'noise sil'
System: 'Are you looking for somewhere near a particular venue? For example, the Botanic Gardens, Downing College, or King's College.'
User: 'cherry hinton'
System: 'What type of food would you like? For example, Indian, International, or Thai.'
User: 'cherry hinton'
System: 'What type of food would you like? For example, Mediterranean, Traditional, or Turkish.'
User: 'thank you good bye'

Example Output: Expensive

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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Holy Trinity Church, or Wandlebury Country Park.'
User: 'restaurant in kings hedges'
System: 'What type of food would you like? For example, Northern european, International, or Spanish.'
User: 'spanish'
System: 'There is no restaurant in the King's Hedges area and serving spanish food.'
User: 'english'
System: 'There is no restaurant in the King's Hedges area and serving english food.'
User: 'asian'
System: 'There is no restaurant in the King's Hedges area and serving english food.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'american'
System: 'The Ranch is a great restaurant, it's in the King's Hedges part of town and it serves american food.'
User: 'breathing sil'
System: 'What type of food would you like? For example, French, Fusion, or Turkish.'
User: 'id like a'
System: 'What type of food would you like? For example, Chinese take away, Contemporary, or Middleeastern.'
User: 'in kings hedges'
System: 'The Ranch, which is in the King's Hedges part of town, is a great restaurant. It serves american food.'
User: 'contemporary'
System: 'There is no restaurant in the King's Hedges area and serving contemporary food.'
User: 'what is the address'
System: 'The Ranch is located on 100 Histon Road.'
User: 'breathing sil'
System: 'The Ranch is an outstanding restaurant.'
User: 'phone number'
System: 'The phone number of the Ranch is 01223322772.'
User: 'what is the phone number'
System: 'The phone number of the Ranch is 01223322772.'
User: 'knocking sil'
System: 'The Ranch is an outstanding restaurant.'
User: 'thank you and good bye'

Example Output:
Don't Care