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 an east asian restaurant and it should be in the expensive price range'
System: 'Shiraz, which serves east asian food, is a great restaurant. It's in the expensive price range.'
User: 'what is the address'
System: 'Shiraz is located on 84 Regent Street. The price for main courses ranges from 9 pounds to 14 pounds 15.'
User: 'what is the phone number'
System: 'The phone number of Shiraz is 01223902104.'
User: 'and what is the area'
System: 'Shiraz is in the riverside part of town.'
User: '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: 'unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'pub'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Fen Ditton, or King's Hedges area.'
User: 'a pub'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Cambridge Contemporary Art, or Kettle's Yard.'
User: 'background noise'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Kettle's Yard, or Williams Art and Antiques.'
User: 'background noise'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Romsey, or Trumpington area.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, riverside, or Trumpington area.'
User: 'it doesnt matter'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'castle hill'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'moderate'
System: 'The Alma, which is in the moderate price range, is an outstanding pub.'
User: 'background noise'
System: 'The Anchor, which is in the moderate price range, is a great pub.'
User: 'i need one with a television'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Milton Country Park, or Saint Catharine's College.'
User: 'background noise'
System: 'The Alma is a great pub and it's in the moderate price range.'
User: 'sil'
System: 'The Alma and The Anchor are the only pubs in the moderate pricerange.'
User: 'background noise'
System: 'The Alma and The Anchor are the only pubs in the moderate pricerange.'
User: 'do they have televisions'
System: 'The Baron of Beef, which allows children, is an outstanding pub.'
User: 'the anchor'
System: 'The Avery, which allows children, is a great pub.'
User: 'i want one with a television'
System: 'The Alma, which allows children, is in the moderate price range. It's a great pub.'
User: 'do you have one with a television'
System: 'The Alma, which allows children, is in the moderate price range. It's an outstanding pub.'
User: 'background noise'
System: 'The Bakers, which allows children, is an outstanding pub.'
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: '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, a pub, or a restaurant.'
User: 'a pub and a'
System: 'Are you looking for somewhere near a particular venue? For example, Artworks, Kettle's Yard, or Lamma's Land.'
User: 'a pub with a tv'
System: 'What kind of price range are you looking for? For example, expensive, or moderate.'
User: 'a pub'
System: 'Are you looking for a venue that allows children?'
User: 'yes'
System: 'The Bakers allows children, it has a television and it's an outstanding pub.'
User: 'thank you'
System: 'The Bakers is a great pub.'
User: 'thank you goodbye'


Ex Output:

Cheap