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 cheap restaurant in the girton area'
System: 'What kind of price range are you looking for? For example, cheap, or moderate.'
User: 'i dont care'
System: 'La Mimosa, which is in the Girton part of town, is a great restaurant. It serves italian food.'
User: 'whats the phone number'
System: 'The phone number of La Mimosa is 01223362525.'
User: 'whats the address'
System: 'La Mimosa is on Thompson's Lane.'
User: 'whats the post code'
System: 'La Mimosa is in the area with the postcode CB5 8AQ.'
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: '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: 'im looking for a cheap fast food restaurant'
System: 'Burger King is a great restaurant, it serves fastfood and it's in the cheap price range.'
User: 'the address and phone number'
System: 'Burger King is on The Grafton Centre and its phone number is 01223322666.'
User: 'thank you goodbye'


Ex Output:

Cheap