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: 'yes im looking for an italian restaurant'
System: 'Let me confirm. You are looking for an italian venue.'
User: 'yes'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Jesus College, Saint Catharine's College, or Trinity College.'
User: 'dont care'
System: 'The Sorrento is a great restaurant, it serves italian food and it's in the expensive price range.'
User: 'whats the address'
System: 'The Sorrento is located on 196 Cherry Hinton Road.'
User: 'whats the phone number'
System: 'The phone number of The Sorrento is 01223243533.'
User: 'whats the postcode'
System: 'The Sorrento is in the area with the postcode CB1 7AN.'
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: 'yes id like to find a cafe food restaurant and it should have a moderate price range'
System: 'Carringtons is a great cafe, it serves cafe food and it's an outstanding restaurant. This place, which serves english food, is in the moderate price range.'
User: 'noise i want to know the address area and phone number of the location'
System: 'Carringtons is on 23 Market Street and its phone number is 01223361792.'
User: 'thank you good bye'

Example Output: Moderate

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 am looking for a seafood restaurant in an expensive price range'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'ok thank you what is the address and phone number of the venue'
System: 'Loch Fyne is on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'ok thank you good bye'

Example Output:
Expensive