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: 'im looking for a restaurant in trumpington i dont care about the price range'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'i dont care'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'a restaurant'
System: 'What type of food would you like? For example, pub, Fusion, or Seafood.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, the Museum Of Technology, Christ's College, or the Museum of Archaelogy and Anthropology.'
User: 'no just in trumpington'
System: 'The Oak Bistro is a great restaurant and it's in the Trumpington part of town.'
User: 'may i have the address and what type of food'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'unintelligible'
System: 'Are you looking for a pub or a restaurant?'
User: 'i need the address'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant in trumpington'
System: 'The Oak Bistro, which serves contemporary food, is on 6 Lensfield Road.'
User: 'and what type of food'
System: 'The Oak Bistro serves contemporary food.'
User: 'and is it in trumpington'
System: 'The Oak Bistro is in the Trumpington part of town.'
User: 'background noise'
System: 'The Oak Bistro is an outstanding restaurant.'
User: 'is it in trumpington'
System: 'The Oak Bistro is in the Trumpington part of town.'
User: 'ok thank you good bye'


Output: 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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Chinese take away, Indian, or Traditional.'
User: 'any'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Holy Trinity Church, or the Ruskin Gallery.'
User: 'newnham'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'ok'
System: 'Can I help you with anything else?'
User: 'no'
System: 'The Red Bull, which is in the Newnham part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'thank you good bye'


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 restaurant'
System: 'What type of food would you like? For example, Northern european, Japanese, or Spanish.'
User: 'um i want a cheap restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Whipple Museum of the History of Science, or Williams Art and Antiques.'
User: 'background noise'
System: 'La Raza, which is in the cheap price range, is a great restaurant.'
User: 'sil'
System: 'La Raza is an outstanding restaurant. It's in the cheap price range.'
User: 'um im looking for a restaurant'
System: 'La Raza, which is in the cheap price range, is an outstanding restaurant.'
User: 'is that in the addenbrookes area'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'id like it in the addenbrookes area'
System: 'The Peking Restaurant, which is in the Addenbrooke's part of town, is a great restaurant. It's in the cheap price range.'
User: 'um what is the address'
System: 'The Peking Restaurant is on Unit 3, The Belvedere, Homerton Street.'
User: 'what is the address'
System: 'The Peking Restaurant is on Unit 3, The Belvedere, Homerton Street.'
User: 'and what is the postcode'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'what is the postcode'
System: 'The Peking Restaurant is in the area with the postcode CB2 8NX.'
User: 'thank you good bye'



Output: Cheap


