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 moderately priced restaurant in new chesterton'
System: 'Hakka is a great restaurant, it's in the New Chesterton part of town and it's in the moderate price range.'
User: 'background noise'
System: 'Hakka is a great restaurant. It's in the New Chesterton part of town. It's in the moderate price range.'
User: 'what is the phone number'
System: 'The phone number of Hakka is 01223568988.'
User: 'what is the address'
System: 'Hakka is on 24 Milton Road.'
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: 'i am looking for a greek restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Byard Art, Kettle's Yard, or the Michaelhouse Centre.'
User: 'no'
System: 'The Eraina Taverna, which serves greek food, is an outstanding restaurant.'
User: 'whats the address phone number and the price'
System: 'The Eraina Taverna is located on 2 Free School Lane and its phone number is 01223902126. The price for main courses ranges from 6 pounds 50 to 13 pounds 95.'
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: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'restaurant in addonbrookes area'
System: 'What type of food would you like? For example, Fastfood, or Vegetarian.'
User: 'breathing sil'
System: 'What type of food would you like? For example, American, Japanese, or Mediterranean.'
User: 're restaurant in the addonbrookes area'
System: 'The Peking Restaurant, which is in the Addenbrooke's part of town, is a great restaurant. It's in the cheap price range.'
User: 'breathing'
System: 'Are you looking for somewhere near a particular venue? For example, King's College, the People's Portraits Exhibition, or Trinity College.'
User: 'cheap'
System: 'The Peking Restaurant is an outstanding restaurant, it's in the Addenbrooke's part of town and it's in the cheap price range.'
User: 'cheap'
System: 'The Peking Restaurant, which is in the Addenbrooke's part of town, is a great restaurant. It's in the cheap price range.'
User: 'breathing sil'
System: 'The Peking Restaurant, which is in the Addenbrooke's part of town, is a great restaurant. It's in the cheap price range.'
User: 'sil'
System: 'What type of food would you like? For example, Indian, International, or Traditional.'
User: 'thank you good bye'


Ex Output:

Cheap


