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: 'im looking for a cafe food restaurant'
System: 'What kind of price range are you looking for? For example, free, or moderate.'
User: 'moderate price range'
System: 'Carringtons serves cafe food and english food. This place, which is a great cafe and an outstanding restaurant, is in the moderate price range.'
User: 'can you give me a phone number and price'
System: 'The phone number of Carringtons is 01223361792. The price for main courses ranges from 4 pounds 25 to 6 pounds 25 and the price for a cappuccino is 1 pound 95.'
User: 'thank you goodbye'


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: 'i need an english restaurant and it should have expensive price range'
System: 'The Backstreet Bistro, which serves contemporary food, is an outstanding restaurant. It serves english food and it's in the expensive price range.'
User: 'great can i have the number and area please'
System: 'The phone number of the Backstreet Bistro is 01223306306. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'noise sil'
System: 'The Backstreet Bistro is a great restaurant.'
User: 'noise sil'
System: 'The Backstreet Bistro is a great restaurant, it serves contemporary and english food and it's in the expensive price range.'
User: 'noise sil'
System: 'The Backstreet Bistro, which serves contemporary food, is an outstanding restaurant. This place, which serves english food, is in the expensive price range.'
User: 'can i have the can i have the number and the area please'
System: 'There is no restaurant in the Girton area and serving english food.'
User: 'can i have the number and area please'
System: 'Would you like a girton area, or you don't care?'
User: 'can i have the phone number'
System: 'Would you like a girton area, or you don't care?'
User: 'phone number'
System: 'Would you like a girton area, or you don't care?'
User: 'i dont care'
System: 'Would you like an english food, or you don't care?'
User: 'i dont care'
System: 'The phone number of the Backstreet Bistro is 01223306306.'
User: 'english restaurant'
System: 'Would you like an english food, or you don't care?'
User: 'address please'
System: 'Would you like an english food, or you don't care?'
User: 'english restaurant and the address'
System: 'The Backstreet Bistro is on 2 Sturton Street.'
User: 'and post code'
System: 'The Backstreet Bistro is in the area with the postcode CB1 2QA.'
User: 'very good 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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'nosie sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'noise im looking for a restaurant that serves pub food'
System: 'What type of food would you like? For example, Fusion, Japanese, or Turkish.'
User: 'im looking for a restaurant'
System: 'Would you like a trumpington area, or you don't care?'
User: 'id like pub food'
System: 'There is no restaurant in the Trumpington area and serving pub food.'
User: 'i dont care'
System: 'Can I help you with anything else?'
User: 'i dont care'
System: 'Blue Spice is a great restaurant.'
User: 'yes'
System: 'Let me confirm. You don't care about the location. You are looking for a venue.'
User: 'im looking for a pub food restaurant'
System: 'The Fountain Inn is a great restaurant and it serves pub food.'
User: 'im looking for a restaurant'
System: 'The Fountain Inn is an outstanding restaurant and it serves pub food.'
User: 'is it in the expensive price range'
System: 'The Fountain Inn is an outstanding venue. The price for main courses ranges from 4 pounds 95 to 7 pounds 95 and the price for a glass of wine ranges from 3 pounds to 4 pounds 50 and the price for a cheapest pint of beer is 2 pounds.'
User: 'is it in the expensive price range'
System: 'The Fountain Inn is a great venue. The price for main courses ranges from 4 pounds 95 to 7 pounds 95 and the price for a glass of wine ranges from 3 pounds to 4 pounds 50 and the price for a cheapest pint of beer is 2 pounds.'
User: 'id like to start over please'
System: 'Revolution, which serves pub food, is an outstanding restaurant. It's in the expensive price range.'
User: 'start over'
System: 'Revolution is an outstanding restaurant, it serves pub food and it's in the expensive price range.'
User: 'what is its phone number'
System: 'The phone number of Revolution is 01223364895.'
User: 'what is its phone number'
System: 'The phone number of Revolution is 01223364895.'
User: 'what is its post code'
System: 'Revolution is in the area with the postcode CB2 3DS.'
User: 'what is the post code'
System: 'Revolution is in the area with the postcode CB2 3DS.'
User: 'thank you good bye'


Ex Output:

Expensive