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.

Input: Consider 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: 'Can I help you with anything else?'
User: 'im looking for a cheap restaurant in the fenditton'
System: 'What part of town do you have in mind? For example, Cherry Hinton, or Fen Ditton.'
User: 'im looking for a cheap restaurant'
System: 'What type of food would you like? For example, Cafe food, or East asian.'
User: 'fenditton'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, Saint Catharine's College, or the Scott Polar Museum.'
User: 'cafe noise'
System: 'Are you looking for somewhere near a particular venue? For example, Holy Trinity Church, the Saint Barnabas Press Gallery, or the Scott Polar Museum.'
User: 'no'
System: 'What part of town do you have in mind? For example, New Chesterton, or Newnham.'
User: 'no'
System: 'What type of food would you like? For example, Drinks and snacks only, French, or Vegetarian.'
User: 'drinks and snacks'
System: 'What type of food would you like? For example, Mexican and Tex Mex, Contemporary, or Thai.'
User: 'texmex'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'thank you good bye'
System: 'There is no restaurant serving mexican and tex mex food in the cheap price range.'
User: 'thank you good bye'


Output: Cheap


Input: Consider 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 moderately priced restaurant in the girton area'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Emmanuel College, or the Scott Polar Museum.'
User: 'im looking for a moderately priced restaurant in the girton area'
System: 'What type of food would you like? For example, pub, International, or Traditional.'
User: 'any'
System: 'What type of food would you like? For example, East asian, Fusion, or Greek.'
User: 'international'
System: 'Are you looking for somewhere near a particular venue? For example, Magdalene College, the People's Portraits Exhibition, or Saint John's College.'
User: 'im looking for a moderately priced restaurant and it should be girton area'
System: 'What type of food would you like? For example, Greek, Seafood, or Vegetarian.'
User: 'sil'
System: 'What type of food would you like? For example, East asian, Greek, or Turkish.'
User: 'international'
System: 'There is no restaurant in the Girton area and serving international food.'
User: 'unintelligible'
System: 'There is no restaurant in the Girton area and serving greek food in the moderate price range.'
User: 'sil'
System: 'Would you like international or X food?'
User: 'thank you goodbye'


Output: Moderate


Input: Consider 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'



Output: Expensive