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: 'yes an english restaurant in the expensive price range'
System: 'The Backstreet Bistro is a great restaurant, it serves contemporary and english food and it's in the expensive price range.'
User: 'in what area'
System: 'The Backstreet Bistro is a great venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'whats the phone number'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'whats the area'
System: 'The Backstreet Bistro is in the Romsey part of town.'
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: 'hello 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: 'okay what is the address and phone number of the restaurant'
System: 'The Red Bull is the only restaurant in the Newnham area in the moderate price range.'
User: 'what is the address of the restaurant'
System: 'The Red Bull is on 11 Barton Road, Newnham. Its phone number is 01223902124.'
User: 'okay thank you goodbye'
System: 'The Red Bull, which is in the Newnham part of town, is a great restaurant. It's in the moderate price range.'
User: 'sil'
System: 'The Red Bull, which is in the Newnham part of town, is a great restaurant. It's in the moderate price range.'
User: 'okay thank you goodbye'


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 the fenditton area'
System: 'Let me confirm. You don't care about the area and you are looking for a venue.'
User: 'no im looking for an expensive restaurant'
System: 'The Riverside Restaurant, which is in the Fen Ditton part of town, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address'
System: 'The Riverside Restaurant is on Cambridge Regional College, Newmarket Road.'
User: 'what is the post code'
System: 'The Riverside Restaurant is in the area with the postcode CB5 8DZ.'
User: 'thank you goodbye'


A:
Expensive
****