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: 'unintelligible'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'fenditton looking for a restaurant in fenditton'
System: 'What type of food would you like? For example, East asian, Chinese, or English.'
User: 'any'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, the Michaelhouse Centre, or Sidney Sussex College.'
User: 'dont care dont care'
System: 'The Lion and Lamb is an outstanding restaurant and it's in the Fen Ditton part of town.'
User: 'any'
System: 'What type of food would you like? For example, American, Contemporary, or Spanish.'
User: 'breathing sil'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is an outstanding restaurant.'
User: 'any restaurant in fenditton'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is an outstanding restaurant.'
User: 'american'
System: 'Blue Spice is an outstanding restaurant and it's in the Girton part of town.'
User: 'perfect let me have the address and phone number'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way. Its phone number is 01223413337.'
User: 'while your at it post code'
System: 'Blue Spice is in the area with the postcode CB1 7DY.'
User: 'address'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'thank you good bye'

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: 'i would like an expensive restaurant in the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'may i have the address and phone number'
System: 'The Backstreet Bistro is located on 2 Sturton Street and its phone number is 01223306306.'
User: 'what type of food is served'
System: 'The Backstreet Bistro serves contemporary and english food.'
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: 'im looking for a cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what is the postcode'
System: 'The Dojo Noodle Bar is in the area with the postcode CB2 1RQ.'
User: 'thank you good bye'

Example Output:
Cheap