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: 'background noise'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'restaurant'
System: 'What type of food would you like? For example, Chinese take away, Indian, or Traditional.'
User: 'any'
System: 'Are you looking for somewhere near a particular venue? For example, Cambridge Contemporary Art, Holy Trinity Church, or the Ruskin Gallery.'
User: 'newnham'
System: 'The Red Bull is a great restaurant, it's in the Newnham part of town and it's in the moderate price range.'
User: 'ok'
System: 'Can I help you with anything else?'
User: 'no'
System: 'The Red Bull, which is in the Newnham part of town, is an outstanding restaurant. It's in the moderate price range.'
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: 'can i find a turkish restaurant unintelligible'
System: 'The Agora is a great restaurant. It serves turkish food. It's in the expensive price range.'
User: 'price range'
System: 'The Agora is an outstanding venue. The price for main courses ranges from 9 pounds to 11 pounds 50 and the price for a cappuccino is 2 pounds 25.'
User: 'i want to find a turkish restaurant'
System: 'The Agora is a great restaurant, it serves turkish food and it's in the expensive price range.'
User: 'in expenso price range'
System: 'The Anatolia Restaurant, which serves turkish food, is a great restaurant. It's in the expensive price range.'
User: 'can i know the address phone number and the postcode'
System: 'The Anatolia Restaurant is on 30 Bridge Street, its phone number is 01223902117 and it's in the area with the postcode CB2 1UJ. The price for main courses ranges from 11 pounds 50 to 15 pounds 95.'
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: 'i want to find a restaurant in kings hedges'
System: 'The Ranch is in the King's Hedges part of town.'
User: 'and the price range can be anything i dont ca'
System: 'The Ranch is an outstanding venue. The price for main courses ranges from 6 pounds to 12 pounds 50.'
User: 'i want to know the address and postcode'
System: 'The Ranch is on 100 Histon Road and it's in the area with the postcode CB4 3JP.'
User: 'thank you good bye'


Ex Output:

Don't Care