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: 'i want to find a pub food restaurant and it should be in the moderate price range'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, the Book and Print Gallery, or the Whipple Museum.'
User: 'no'
System: 'The Lion and Lamb is an outstanding restaurant. It serves pub food. It's in the moderate price range.'
User: 'can i get the address phone number and the area'
System: 'The Lion and Lamb is on High Street, Milton and its phone number is 01223860202.'
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 sil'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'cheap restaurant castle hill area'
System: 'What type of food would you like? For example, Fastfood, International, or Seafood.'
User: 'doent matter'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Holy Trinity Church, or Old Schools.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Trumpington area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, Addenbrooke's.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or King's Hedges area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or New Chesterton area.'
User: 'thank you good bye'


Ex Output:
Cheap


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: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'noise'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'vegetarian restaurant'
System: 'The Rainbow Cafe, which serves traditional and vegetarian food, is a great restaurant.'
User: 'dont care'
System: 'The Rainbow Cafe is an outstanding restaurant. It serves traditional and vegetarian food.'
User: 'perfect can i have the address and phone number'
System: 'The Rainbow Cafe is on 9a King's Parade and its phone number is 01223321551.'
User: 'address phone number'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'address'
System: 'The Rainbow Cafe is an outstanding restaurant, it serves traditional food and it serves vegetarian food.'
User: 'address'
System: 'The Rainbow Cafe is a great restaurant. It serves traditional and vegetarian food.'
User: 'address whats the address'
System: 'The Rainbow Cafe is on 9a King's Parade.'
User: 'thank you goodbye'


Ex Output:

Don't Care