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 turkish restaurant in the expensive price range'
System: 'What part of town do you have in mind? For example, Chesterton, or Fen Ditton.'
User: 'it doesnt matter'
System: 'The Agora, which serves turkish food, is a great restaurant. It's in the expensive price range.'
User: 'whats the address'
System: 'The Agora is located on 4 King's Parade. The price for main courses ranges from 9 pounds to 11 pounds 50 and the price for a cappuccino is 2 pounds 25.'
User: 'whats the phone number'
System: 'The phone number of The Agora is 01223308448.'
User: 'whats the post code'
System: 'The Agora is in the area with the postcode CB2 1SJ.'
User: 'thank you goodbye'


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: 'i am looking for a fusion restaurant with a moderate price range'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, the Museum of Archaelogy and Anthropology, or Old Schools.'
User: 'no'
System: 'Aki Teri is an outstanding restaurant, it serves fusion food and it's in the moderate price range.'
User: 'what is the address'
System: 'Aki Teri is located on 3-5 Quayside.'
User: 'what is the area of the venue'
System: 'Aki Teri is in the riverside part of town.'
User: 'thank you good bye'


Ex Output:
Moderate


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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'moderately high pretty pricey'
System: 'Are you looking for somewhere near a particular venue? For example, Gonville and Caius College, Little Saint Mary's, or Milton Country Park.'
User: 'girton'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, King's Hedges, or Newnham area.'
User: 'girton im looking for a venue in girton'
System: 'What type of food would you like? For example, Continental, English, or Spanish.'
User: 'girton'
System: 'Let me confirm. You are looking for a venue in the moderate price range.'
User: 'english'
System: 'Let me confirm. You are looking for a venue in the moderate price range.'
User: 'yes'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'yes that is correct'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'unintelligible'
System: 'Would you like a girton area, or you don't care?'
User: 'ok um american food'
System: 'Would you like a girton area, or you don't care?'
User: 'uh i like the girton area'
System: 'Would you like english or X food?'
User: 'i like the girton area'
System: 'Would you like english or X food?'
User: 'x'
System: 'Would you like english or X food?'
User: 'thank you good bye'


Ex Output:

Moderate