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.

[Q]: 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 contemporary restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'cheap price range'
System: 'All Bar One is a great restaurant, it serves contemporary food and it's in the cheap price range.'
User: 'what is the address'
System: 'All Bar One is located on 36 Saint Andrews Street. The price for main courses ranges from 7 pounds 95 to 12 pounds 95 and the price for a glass of wine ranges from 2 pounds 85 to 6 pounds 95.'
User: 'what is the area'
System: 'All Bar One is in the central part of town.'
User: 'thank you good bye'

[A]: Cheap


[Q]: 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 cafe, or a pub.'
User: 'im looking for a moderately priced restaurant in the cherry hinton area'
System: 'The Six Bells, High Saint, which is in the Cherry Hinton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the address'
System: 'The Six Bells, High Saint is on 9 High Saint, Fulbourn.'
User: 'what type of food is it'
System: 'The Six Bells, High Saint serves pub food.'
User: 'thank you good bye'

[A]: Moderate


[Q]: 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 an expensive restaurant in trumpington area'
System: 'What type of food would you like? For example, Contemporary, Continental, or Thai.'
User: 'no preference'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House, Jesus College, or Saint John's College.'
User: 'no'
System: 'The Oak Bistro is an outstanding restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
User: 'whats the price'
System: 'The Oak Bistro is an outstanding venue. The price for main courses ranges from 11 pounds 50 to 17 pounds 75.'
User: 'whats the phone number'
System: 'The phone number of The Oak Bistro is 01223323361.'
User: 'thank you goodbye'

[A]:
Expensive