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.

Input: Consider 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: 'knock sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'expensive english restaurant'
System: 'Would you like turkish or X food?'
User: 'english'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'expensive'
System: 'Would you like an expensive price range, or you don't care?'
User: 'yes'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive'
System: 'The Backstreet Bistro, which serves contemporary and english food, is an outstanding restaurant. It's in the expensive price range.'
User: 'can i have the address'
System: 'The Backstreet Bistro is located on 2 Sturton Street.'
User: 'can i have the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'can i have the post code'
System: 'The Backstreet Bistro is in the area with the postcode CB1 2QA.'
User: 'thank you good bye'


Output: Expensive


Input: Consider 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 im trying to find a moderately priced restaurant and i want it to be in the chesterton area'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'may i have the address phone number and price of the venue'
System: 'Twenty-four is located on 24 Cambridge Science Park, Milton Road and its phone number is 01223395800. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'good bye and thank you'


Output: Moderate


Input: Consider 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'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a cheap restaurant in the fenditton area'
System: 'The Milton Park English and Thai Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the address'
System: 'The Milton Park English and Thai Restaurant is located on Milton Park Golf Course, Ely Road, Milton.'
User: 'what is the phone number'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'breathing'
System: 'The Milton Park English and Thai Restaurant is a great restaurant.'
User: 'what is the phone number'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'what is the phone number'
System: 'The phone number of the Milton Park English and Thai Restaurant is 01223864602.'
User: 'thank you goodbye'



Output: Cheap