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: 'a restaurant that sells drinks and snacks only'
System: 'The Fleur, which serves drinks and snacks, is a great restaurant.'
User: 'it should have a moderate price range'
System: 'The Fleur, which serves drinks and snacks, is a great restaurant. It's in the moderate price range.'
User: 'you please give me the address and the area'
System: 'The Fleur is located on 73 Humberstone Road.'
User: 'in which area'
System: 'The Fleur is in the riverside part of town.'
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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe.'
User: 'i would like a'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'a moderate priced restaurant in unintelligible'
System: 'Would you like a venue with a cheap or moderate price range?'
User: 'moderate priced restaurant in chesterton'
System: 'Twenty-four, which is in the Chesterton part of town, is a great restaurant. It's in the moderate price range.'
User: 'moderate'
System: 'Twenty-four, which is in the Chesterton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'what is the phone number and address'
System: 'Twenty-four is located on 24 Cambridge Science Park, Milton Road and its phone number is 01223395800. The price for main courses ranges from 6 pounds to 15 pounds.'
User: 'what is the phone number and address'
System: 'The phone number of Twenty-four is 01223395800.'
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 cafe, or a pub.'
User: 'um unintelligible'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'i am looking for a restaurant that serves pub'
System: '196 Meze Bar, which is in the Romsey part of town, is an outstanding restaurant.'
User: 'i am looking for a restaurant that serves pub food'
System: 'There is no restaurant in the Romsey area and serving thai food.'
User: 'lets start over please'
System: 'The Royal Standard, which is in the Romsey part of town, is a great restaurant.'
User: 'unintelligible'
System: 'Would you like a thai food, or you don't care?'
User: 'no i would like pub food'
System: 'The Kingston Arms, which is in the Romsey part of town, is a great restaurant. It serves pub food.'
User: 'what is its price range'
System: 'The Kingston Arms is in the cheap price range.'
User: 'what is its phone number'
System: 'The phone number of The Kingston Arms is 01223319414.'
User: 'what is its address'
System: 'The Kingston Arms is located on 33 Kingston Street.'
User: 'thank you goodbye'


Ex Output:

Cheap