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.

Example 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: 'looking for a mediterranean restaurant in the moderate price range'
System: 'Nando's Restaurant, Saint Andrews Street, which serves mediterranean food, is a great restaurant. It's in the moderate price range.'
User: 'whats the address'
System: 'Nando's Restaurant, Saint Andrews Street is located on 33-34 Saint Andrews Street.'
User: 'whats the phone number'
System: 'The phone number of Nando's Restaurant, Saint Andrews Street is 01223327908.'
User: 'whats the postcode'
System: 'Nando's Restaurant, Saint Andrews Street is in the area with the postcode CB2 3AR.'
User: 'thank you good bye'

Example Output: Moderate

Example 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 venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'i would like a'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a moderate priced restaurant in unintelligible'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'moderate priced restaurant in chesterton'
System: 'Twenty-four, which is in the Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'moderate'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the phone number and address'
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: 'what is the phone number and address'
System: 'The phone number of Twenty-four is 01223395800.'
User: 'thank you good bye'

Example Output: Moderate

Example 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: 'can i find a continental restaurant with ah expensive price range'
System: 'Alimentum, which serves continental and french food, is an outstanding restaurant. It's in the expensive price range.'
User: 'can i get the phone number and the area'
System: 'Alimentum is on 152-154 Hills Road and its phone number is 01223413000. The price for main courses ranges from 17 pounds 50 to 21 pounds and the price for a glass of wine ranges from 6 pounds 50 to 10 pounds 50.'
User: 'thank you good bye'

Example Output:
Expensive