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: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or King's Hedges area.'
User: 'addenbrookes area'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, Little Saint Mary's, or Wandlebury Country Park.'
User: 'addenbrookes'
System: 'Are you looking for somewhere near a particular venue? For example, the Broughton House Gallery, the Whipple Museum of the History of Science, or Williams Art and Antiques.'
User: 'no'
System: 'Chiquito, which is in the Addenbrooke's part of town, is an outstanding restaurant.'
User: 'expensive restaurant'
System: 'Chiquito, which is in the Addenbrooke's part of town, is a great restaurant. It's in the expensive price range.'
User: 'address phone number and post code please'
System: 'Chiquito, which is in the area with the postcode CB1 7DY, is located on Cambridge Leisure Park. Its phone number is 01223400170.'
User: 'repeat'
System: 'Chiquito is a great restaurant.'
User: 'address phone number and post code'
System: 'Chiquito is on Cambridge Leisure Park, its phone number is 01223400170 and it's in the area with the postcode CB1 7DY.'
User: 'sil'
System: 'Chiquito is a great restaurant.'
User: 'phone number'
System: 'The phone number of Chiquito is 01223400170.'
User: 'phone number'
System: 'The phone number of Chiquito is 01223400170.'
User: 'post code'
System: 'Chiquito is in the area with the postcode CB1 7DY.'
User: 'post code'
System: 'Chiquito is in the area with the postcode CB1 7DY.'
User: 'post code'
System: 'Chiquito is in the area with the postcode CB1 7DY.'
User: 'thank you good bye'


Output: Expensive


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: 'cheap'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'moderate'
System: 'What type of food would you like? For example, Cafe food, Chinese take away, or Turkish.'
User: 'japanese'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Newnham, or Romsey area.'
User: 'in the romsey area'
System: 'Are you looking for somewhere near a particular venue? For example, Castle Galleries, Magdalene College, or Sidney Sussex College.'
User: 'sydney sussex collesge'
System: 'Are you looking for somewhere near a particular venue? For example, the Technology Museum, Gonville and Caius College, or King's College.'
User: 'the technology building'
System: 'Yippee Noodle Bar is a great restaurant, it serves chinese take away and japanese food and 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: 'pub restaurant'
System: 'Are you looking for a pub or a restaurant?'
User: 'both'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'cheap'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'cheap'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'cheap'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'cheap'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'yes'
System: 'Let me confirm. You are looking for a venue in the cheap price range.'
User: 'yes'
System: 'What type of food would you like? For example, Indian, Spanish, or Turkish.'
User: 'yes'
System: 'What type of food would you like? For example, Northern european, American, or Turkish.'
User: 'i dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'pub'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, Gonville and Caius College, or Little Saint Mary's.'
User: 'yes'
System: 'What part of town do you have in mind? For example, something in the Arbury, Barnwell, or Chesterton area.'
User: 'i dont care'
System: 'Let me confirm. You don't care about children and you are looking for a venue.'
User: 'yes'
System: 'Let me confirm. You don't care about children and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for a pub or a restaurant?'
User: 'pub'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'What type of food would you like? For example, Drinks and snacks only, Seafood, or Traditional.'
User: 'pub'
System: 'Are you looking for a venue with a television?'
User: 'i dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'restaurant'
System: 'Are you looking for a pub or a restaurant?'
User: 'pub'
System: 'Are you looking for a venue that allows children?'
User: 'i dont care'
System: 'Are you looking for a pub or a restaurant?'
User: 'a pub'
System: 'The Avery, which is in the cheap price range, is an outstanding pub.'
User: 'phone number'
System: 'The phone number of The Avery is 01223323405.'
User: 'address'
System: 'The Avery is located on 69-73 Regent Street.'
User: 'goodbye'



Output: Cheap


