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: 'sil'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or Newnham area.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'northern european restaurant'
System: 'Polonia is an outstanding restaurant and it serves northern european food.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Romsey area.'
User: 'i dont care about the price range'
System: 'Polonia is a great venue. The price for main courses ranges from 1 pound 50 to 7 pounds 50.'
User: 'romsey area'
System: 'Polonia is in the riverside part of town.'
User: 'thank you and good bye'


Ex Output:
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: 'cafe food restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'There is no restaurant serving cafe food in the expensive price range.'
User: 'then cheap cheap'
System: 'There is no restaurant serving cafe food in the expensive price range.'
User: 'sil'
System: 'Would you like a cafe food, or you don't care?'
User: 'cafe'
System: 'Would you like a cafe food, or you don't care?'
User: 'cafe food'
System: 'Would you like an expensive price range, or you don't care?'
User: 'a cafe food'
System: 'Would you like an expensive price range, or you don't care?'
User: 'sil'
System: 'Would you like an expensive price range, or you don't care?'
User: 'cafe'
System: 'Would you like an expensive price range, or you don't care?'
User: 'yes'
System: 'Would you like an expensive price range, or you don't care?'
User: 'cheap'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'no'
System: 'Would you like a venue with a cheap or expensive price range?'
User: 'yes cheap'
System: 'Subway is an outstanding restaurant. It serves cafe food. It's in the cheap price range.'
User: 'thank you and goodbye'


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 im trying to find a moderately priced restaurant and i want it to be in the chesterton area'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'may i have the address phone number and price of the venue'
System: 'Twenty-four is located on 24 Cambridge Science Park, Milton Road and its phone number is 01223395800. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'good bye and thank you'


Ex Output:

Moderate