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.

Ex 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: 'im looking for a fusion restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'any price range i dont care about the price range'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'moderate'
System: 'Are you looking for somewhere near a particular venue? For example, the Museum Of Technology, Hughes Hall, or Magdalene College.'
User: 'no any place'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'yes'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'sil'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'i dont care about the price range'
System: 'Aki Teri, which serves fusion food, is a great restaurant. It's in the moderate price range.'
User: 'whats the phone number and address'
System: 'The phone number of Aki Teri is 01223323888. The price for main courses ranges from 8 pounds 80 to 11 pounds 80.'
User: 'and whats the address'
System: 'Aki Teri is on 3-5 Quayside.'
User: 'thank you good bye'


Ex Output:
Don't Care


Ex 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: 'im looking for a thai restaruant and it should have an exp expensive price range'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or Cherry Hinton area.'
User: 'i dont care'
System: 'The Wrestlers is an outstanding restaurant, it serves thai food and it's in the expensive price range.'
User: 'great can i get the address phone number and post code'
System: 'The Wrestlers, which is in the area with the postcode CB5 8JE, is located on 337 Newmarket Road. Its phone number is 01223566554. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'thank you good bye'


Ex Output:
Expensive


Ex 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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a traditional restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Magdalene College, or the People's Portraits Exhibition.'
User: 'traditional'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'no'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, Churchill College, or the People's Portraits Exhibition.'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Christ's College, Saint John's College, or the Scott Polar Museum.'
User: 'no'
System: 'The Eagle, which serves traditional food, is an outstanding restaurant.'
User: 'no'
System: 'The Eagle is an outstanding restaurant and it serves traditional food.'
User: 'what is the address'
System: 'The Eagle is located on 8 Benet Street.'
User: 'what is the post code'
System: 'The Eagle is in the area with the postcode CB2 3QN.'
User: 'sil'
System: 'The Eagle is an outstanding restaurant.'
User: 'what is the post code'
System: 'The Eagle is in the area with the postcode CB2 3QN.'
User: 'thank you good bye'


Ex Output:

Expensive