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 am trying to find a chinese take away restaurant and it should be in the cheap price range'
System: 'Saigon City, which serves chinese take away, is an outstanding restaurant. It's in the cheap price range.'
User: 'can i have the address and the area of the venue'
System: 'Saigon City is an outstanding venue. The price for main courses ranges from 4 pounds 60 to 5 pounds 10.'
User: 'the address'
System: 'Saigon City is on 169 High Street, Chesterton.'
User: 'ok 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: 'yes im looking for a moderately priced restaurant in the new chesterton area'
System: 'Hakka is an outstanding restaurant, it's in the New Chesterton part of town and it's in the moderate price range.'
User: 'whats the phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'and whats the postcode'
System: 'Hakka is in the area with the postcode CB4 1JY.'
User: 'thank you bu 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, expensive, or free.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'cheap'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Castle Hill, or Chesterton area.'
User: 'restaurant'
System: 'What type of food would you like? For example, French, Seafood, or Vegetarian.'
User: 'doesnt matter'
System: 'Are you looking for somewhere near a particular venue? For example, Churchill College, the Michaelhouse Centre, or the Museum of Classical Archaeology.'
User: 'addonbrookes'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall, the People's Portraits Exhibition, or The Fitzwilliam Museum.'
User: 'knocking sil'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or Girton area.'
User: 'noise addonbrookes noise'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, the Saint Barnabas Press Gallery, or Sidney Sussex College.'
User: 'knocking addonbookes i would like to get the address and price for a cheap restaurant'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, King's Hedges, or Newnham area.'
User: 'thank you good bye'


Ex Output:

Cheap