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 mexican or a texmex restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'ah expensive'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Museum Of Technology, or Clare Hall.'
User: 'ah no i just need the address phone number and post code'
System: 'Are you looking for somewhere near a particular venue? For example, King's College, the People's Portraits Exhibition, or the Lammas Land Park.'
User: 'no'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant. It's in the expensive price range.'
User: 'ah whats the address phone number and post code'
System: 'Nanna Mexico is on 33 Regent Street, its phone number is 01223902150 and it's in the area with the postcode CB2 1AB.'
User: 'thank you good bye'


A: Expensive
****
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 mexican restaurant and it should be very expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Artworks, or Milton Country Park.'
User: 'no'
System: 'Nanna Mexico, which serves mexican and tex mex food, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and pnone number'
System: 'Nanna Mexico is on 33 Regent Street and its phone number is 01223902150.'
User: 'thank you goodbye'


A: Expensive
****
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: 'system i am looking for a moderately priced restaurant in the newnham area'
System: 'The Red Bull, which is in the Newnham part of town, is a great restaurant. It's in the moderate price range.'
User: 'whats the address and phone number of the venue'
System: 'The Red Bull is on 11 Barton Road, Newnham and its phone number is 01223902124.'
User: 'what was the address again'
System: 'The Red Bull is on 11 Barton Road, Newnham.'
User: 'thank you good bye'


A:
Moderate
****