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: 'noise'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'noise'
System: 'Are you looking for a venue with a television?'
User: 'moderate'
System: 'Are you looking for a venue with an internet connection?'
User: 'no'
System: 'Are you looking for a venue that allows children?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'no'
System: 'Are you looking for a pub or a restaurant?'
User: 'im looking for a'
System: 'Are you looking for a pub or a restaurant?'
User: 'a restaurant'
System: 'What type of food would you like? For example, Chinese, or Fusion.'
User: 'any food'
System: 'Are you looking for a pub or a restaurant?'
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: 'im looking for a cheap restaurant in the girton area'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the phone number'
System: 'The phone number of the Dojo Noodle Bar is 01223363471.'
User: 'what is the postcode'
System: 'The Dojo Noodle Bar is in the area with the postcode CB2 1RQ.'
User: 'thank you good bye'


Ex Output:
Cheap


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 cafe, 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: 'yes im looking for a cheap pub'
System: 'The Bakers is a great pub and it's in the cheap price range.'
User: 'yes im looking for a cheap'
System: 'The Bakers, which is in the cheap price range, is a great pub.'
User: 'im looking for a cheap pub'
System: 'The Bakers, which is in the cheap price range, is a great pub.'
User: 'can you give me the address'
System: 'The Bakers is on 176 East Road.'
User: 'can you give me the address'
System: 'The Bakers is on 176 East Road.'
User: 'can you give me the telephone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'jesus'
System: 'The Bakers is an outstanding pub.'
User: 'can you give me the telephone number'
System: 'The phone number of The Bakers is 01223304121.'
User: 'thank you goodbye'


Ex Output:

Cheap