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: 'a thai restaurant'
System: 'Let me confirm. You are looking for a thai venue.'
User: 'yes'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Romsey area.'
User: 'i dont care'
System: 'The Wrestlers, which serves thai food, is an outstanding restaurant.'
User: 'whisperingunintelligible'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'can you please give me the address and the price'
System: 'The Wrestlers is on 337 Newmarket Road. 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: 'sil'
System: 'The Wrestlers is a great restaurant.'
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: 'a pub'
System: 'Are you looking for a venue with an internet connection?'
User: 'pub'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'yes with children allowed'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'Are you looking for a venue with an internet connection?'
User: 'yes'
System: 'There is no pub with an internet connection in the moderate price range.'
User: 'expensive then'
System: 'There is no pub in the expensive price range.'
User: 'free'
System: 'Would you like a venue with an expensive pricerange or with no entrance fee?'
User: 'no entrance fee'
System: 'There is no pub that is providing services for free.'
User: 'alright moderately priced then'
System: 'There is no pub with an internet connection in the moderate price range.'
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: 'noise sil'
System: 'What part of town do you have in mind? For example, something in the Arbury, New Chesterton, or Trumpington area.'
User: 'noise italian restaurant'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, central, or Romsey area.'
User: 'breathing sil'
System: 'Caffe Uno, which serves italian food, is an outstanding restaurant.'
User: 'cherry hinton central'
System: 'Are you looking for a venue in the Cherry Hinton or central area?'
User: 'whats the address'
System: 'Caffe Uno is located on 32 Bridge Street.'
User: 'the phone number'
System: 'The phone number of Caffe Uno is 01223314954.'
User: 'thank you and good bye'


Ex Output:

Expensive