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: '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'

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: 'looking for an expensive indian restaurant'
System: 'Blue Spice is an outstanding restaurant, it serves indian food and it's in the expensive price range.'
User: 'breathing sil'
System: 'Blue Spice is a great restaurant, it serves indian food and it's in the expensive price range.'
User: 'breathing sil'
System: 'Blue Spice is an outstanding restaurant. It serves indian food. It's in the expensive price range.'
User: 'what is the telephone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'what is the area breathing'
System: 'Blue Spice is in the Girton part of town.'
User: 'what is the area'
System: 'Blue Spice is in the Girton part of town.'
User: 'thank you good bye'

Example Output: Expensive

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: 'i want to find an expensive seafood restaurant'
System: 'Loch Fyne, which serves seafood, is an outstanding restaurant. It's in the expensive price range.'
User: 'what is the address and phone number'
System: 'Loch Fyne is located on 37 Trumpington Street and its phone number is 01223902103.'
User: 'what is the cost'
System: 'Loch Fyne is in the riverside part of town.'
User: 'how much does it cost'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'thank you goodbye'

Example Output:
Expensive