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 looking for a seafood restaurant in an expensive price range'
System: 'Loch Fyne, which serves seafood, is a great restaurant. It's in the expensive price range.'
User: 'ok thank you what is the address and phone number of the venue'
System: 'Loch Fyne is on 37 Trumpington Street and its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'ok thank you good bye'


Ex Output:
Expensive


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 american restaurant'
System: 'Are you looking for a cafe or a restaurant?'
User: 'restaurant american'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'dont care'
System: 'What part of town do you have in mind? For example, Fen Ditton, or New Chesterton.'
User: 'address'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the Folk Museum, or Jesus College.'
User: 'address'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, central, or Newnham area.'
User: 'address'
System: 'Are you looking for somewhere near a particular venue? For example, Corpus Christi, or King's College.'
User: 'american res'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, Jesus College, or the Museum of Classical Archaeology.'
User: 'kings college'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or riverside area.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, New Chesterton, or Trumpington area.'
User: 'river side'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Newnham, or riverside area.'
User: 'trumpington'
System: 'There is no restaurant in the Trumpington area and serving american food.'
User: 'thank you 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: 'sil'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'moderate price range'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'greek'
System: 'Are you looking for a cafe or a restaurant?'
User: 'unintelligible'
System: 'Are you looking for a cafe or a restaurant?'
User: 'uh restaurant'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant. It's in the moderate price range.'
User: 'restaurant'
System: 'The Eraina Taverna, which serves greek food, is a great restaurant. It's in the moderate price range.'
User: 'yes tell me about that'
System: 'The phone number of the Eraina Taverna is 01223902126.'
User: 'say again'
System: 'The phone number of the Eraina Taverna is 01223902126.'
User: 'whats the address'
System: 'The Eraina Taverna is located on 2 Free School Lane.'
User: 'sil'
System: 'The Eraina Taverna, which serves greek food, is a great restaurant. It's in the moderate price range.'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'sil'
System: 'Can I help you with anything else?'
User: 'thank you goodbye'


Ex Output:

Moderate