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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'coffee shop'
System: 'Can I help you with anything else?'
User: 'coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Pembroke College, the Saint Barnabas Press Gallery, or the Whipple Museum.'
User: 'cafe'
System: 'What type of food would you like? For example, Drinks and snacks only, Northern european, or Turkish.'
User: 'no'
System: 'What type of food would you like? For example, American, English, or Japanese.'
User: 'no'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Michaelhouse Centre, or The Fitzwilliam Museum.'
User: 'no'
System: 'The Cambridge Blue is an outstanding cafe.'
User: 'no'
System: 'The Cambridge Blue is an outstanding cafe.'
User: 'price'
System: 'The Cambridge Blue is located on 24 Regent Street. The price for main courses ranges from 1 pound 20 to 2 pounds 50 and the price for a cappuccino is 1 pound 35.'
User: 'price'
System: 'The Cambridge Blue is an outstanding venue. The price for main courses ranges from 1 pound 20 to 2 pounds 50 and the price for a cappuccino is 1 pound 35.'
User: 'moderate'
System: 'Cafe Eleven, which is in the moderate price range, is a great cafe.'
User: 'address'
System: 'Cafe Eleven is located on 11 Burleigh Street.'
User: 'address'
System: 'Cafe Eleven is located on 11 Burleigh Street.'
User: 'price'
System: 'Cafe Eleven is a great venue. The price for main courses ranges from 1 pound 50 to 6 pounds and the price for a cappuccino is 1 pound 75.'
User: 'sil'
System: 'Cafe Eleven is a great cafe.'
User: 'price'
System: 'Cafe Eleven is a great venue. The price for main courses ranges from 1 pound 50 to 6 pounds and the price for a cappuccino is 1 pound 75.'
User: 'telephone'
System: 'The phone number of Cafe Eleven is 01223369157.'
User: 'telephone'
System: 'The phone number of Cafe Eleven is 01223369157.'
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: 'noise'
System: 'Are you looking for a cafe or a restaurant?'
User: 'expensive restaurant in the trumpington'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, Kettle's Yard, or the Michaelhouse Centre.'
User: 'noise'
System: 'What type of food would you like? For example, Drinks and snacks only, Fusion, or Vegetarian.'
User: 'noise'
System: 'What type of food would you like? For example, Chinese take away, Drinks and snacks only, or Mediterranean.'
User: 'noise'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, Emmanuel College, or the Saint Barnabas Press Gallery.'
User: 'garbled expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, Magdalene College, or the Museum of Classical Archaeology.'
User: 'trumpington'
System: 'What type of food would you like? For example, East asian, Greek, or International.'
User: 'trumpington'
System: 'What type of food would you like? For example, Continental, Spanish, or Traditional.'
User: 'noise'
System: 'What type of food would you like? For example, Chinese, Continental, or Italian.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, or Middleeastern.'
User: 'thank you goodbye thank you goodbye thank you goodbye 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: 'expensive restaurant in the trumington area'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, Little Saint Mary's, or the Whipple Museum.'
User: 'trumpington area'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the University Botanic Gardens, or the Regency Gallery.'
User: 'yes'
System: 'What type of food would you like? For example, Northern european, International, or Mediterranean.'
User: 'trumpington area'
System: 'Are you looking for somewhere near a particular venue? For example, the University Botanic Gardens, Holy Trinity Church, or the Museum of Classical Archaeology.'
User: 'any'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, Queens' College, or Wandlebury Country Park.'
User: 'yes trumpington'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Book and Print Gallery, or Magdalene College.'
User: 'breathing sil'
System: 'Are you looking for somewhere near a particular venue? For example, Holy Trinity Church, the Lynne Strover Gallery, or Sheep's Green.'
User: 'thank you good bye'


Ex Output:

Expensive