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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'coughing'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, the Michaelhouse Centre, or the Regency Gallery.'
User: 'a restaurant'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'sil'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or New Chesterton area.'
User: 'north european'
System: 'Polonia, which serves northern european food, is an outstanding restaurant.'
User: 'barnwell'
System: 'The Wheatsheaf is an outstanding restaurant and it's in the Barnwell part of town.'
User: 'cheap price range'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'what is the address'
System: 'The Wheatsheaf is on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'is it in the cheap price range'
System: 'The Wheatsheaf is an outstanding restaurant.'
User: 'what is the address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy. The price for main courses ranges from 4 pounds to 13 pounds and the price for a cheapest pint of beer is 2 pounds 65.'
User: 'what is the address'
System: 'The Wheatsheaf is located on Stow Road, Stow-Cum-Quy.'
User: 'what is the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'the phone number'
System: 'The phone number of the Wheatsheaf is 01223812196.'
User: 'thank you goodbye'


Output: Cheap


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: 'unintelligible'
System: 'Let me confirm. You are looking for a venue in the Girton area.'
User: 'no'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'im looking for a restaurant in the fen ditton area'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'moderately priced'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, the Gallery at twelve A High Street, or Williams Art and Antiques.'
User: 'dont care'
System: 'Let me confirm. You don't care about the location and you are looking for a venue.'
User: 'yes'
System: 'The Lion and Lamb, which is in the Fen Ditton part of town, is a great restaurant. It's in the moderate price range.'
User: 'background noise'
System: 'The Lion and Lamb is a great restaurant and it's in the Fen Ditton part of town. It's in the moderate price range.'
User: 'whats the address'
System: 'The Lion and Lamb is on High Street, Milton.'
User: 'unintelligible'
System: 'The Lion and Lamb is an outstanding restaurant.'
User: 'whats the phone number'
System: 'The phone number of The Lion and Lamb is 01223860202.'
User: 'whats the price'
System: 'The Lion and Lamb is a great venue. The price for main courses ranges from 5 pounds to 15 pounds and the price for a cheapest pint of beer is 3 pounds.'
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'
System: 'Are you looking for a venue with an internet connection?'
User: 'i dont i want to find a chinese take away restaurant i dont care where it is'
System: 'Are you looking for a venue that allows children?'
User: 'i dont care'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'expensive'
System: 'There is no pub in the expensive price range.'
User: 'unintelligible'
System: 'Let me confirm. You don't care about children and you are looking for a venue.'
User: 'restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Artspace, Gonville and Caius College, or Wandlebury Country Park.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Fen Ditton, or Trumpington area.'
User: 'i dont care'
System: 'Blue Spice is an outstanding restaurant and it's in the expensive price range.'
User: 'what is the address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'what area is that in'
System: 'Blue Spice is in the Girton part of town.'
User: 'thank you good bye'



Output: Expensive