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: 'hi im looking for a coffee shope'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Corpus Christi, or Sidney Sussex College.'
User: 'serving any kind of food'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'do you have something else'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'im looking for a coffee shop'
System: 'There is no cafe in the Cherry Hinton area.'
User: 'in any area'
System: 'There is no cafe serving indian food.'
User: 'any kind of food what about any kind of food'
System: 'Carringtons is an outstanding cafe and a great restaurant.'
User: 'it should have a moderate price range'
System: 'Carringtons, which is a great cafe and an outstanding restaurant, is in the moderate price range.'
User: 'can i get the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'noise sil'
System: 'Carringtons is a great restaurant.'
User: 'ok give me the phone number'
System: 'The phone number of Carringtons is 01223361792.'
User: 'and the post code please'
System: 'Carringtons is in the area with the postcode CB2 3NZ.'
User: 'thank you good bye'


Ex Output:
Moderate


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'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise'
System: 'What kind of venue are you looking for? For example, a restaurant.'
User: 'restaurant'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'a restaurant'
System: 'What kind of price range are you looking for? For example, moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'noise'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, cheap, or free.'
User: 'expensive'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'expensive'
System: 'What type of food would you like? For example, Cafe food, pub, or Vegetarian.'
User: 'expensive'
System: 'What type of food would you like? For example, pub, American, or Continental.'
User: 'does not matter'
System: 'What type of food would you like? For example, Chinese take away, Contemporary, or Italian.'
User: 'american'
System: 'There is no restaurant serving american food in the expensive price range.'
User: 'italian'
System: 'Would you like an expensive price range, or you don't care?'
User: 'expensive'
System: 'Are you looking for somewhere near a particular venue? For example, Kettle's Yard, the Michaelhouse Centre, or Primavera.'
User: 'in the addenbrookes area'
System: 'The Sorrento, which is in the Addenbrooke's part of town, is a great restaurant. This place, which serves italian food, is in the expensive price range.'
User: 'what is the address and the post code'
System: 'The Sorrento, which is in the area with the postcode CB1 7AN, is on 196 Cherry Hinton Road. Its phone number is 01223243533.'
User: 'thank you goodbye'


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: 'i need to find a sea food restaurant and it should be in the expensive price range'
System: 'Let me confirm. You are looking for a venue in the expensive price range.'
User: 'yes'
System: 'What type of food would you like? For example, Italian, Mediterranean, or Traditional.'
User: 'unintelligible sil'
System: 'What type of food would you like? For example, Chinese, International, or Traditional.'
User: 'sea food'
System: 'Loch Fyne is an outstanding restaurant. It serves seafood. It's in the expensive price range.'
User: 'can i get the address the phone number and the price of the venue'
System: 'Loch Fyne is on 37 Trumpington Street. Its phone number is 01223902103. The price for main courses ranges from 9 pounds to 20 pounds.'
User: 'thank you good bye'


Ex Output:

Expensive