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: 'ya hi ah i want to find a fusion restaurant'
System: 'What type of food would you like? For example, Fastfood, Mediterranean, or Turkish.'
User: 'ah fast food and it should have been in the cheap price range'
System: 'Burger King is an outstanding restaurant, it serves fastfood and it's in the cheap price range.'
User: 'can i have an address and phone number'
System: 'Burger King is on The Grafton Centre. Its phone number is 01223322666. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'ah and can i have a area of the venue'
System: 'Burger King is a great restaurant.'
User: 'ah 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: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'breathing sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'an expensive restaurant in romsey'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'what is the price'
System: 'The Backstreet Bistro is an outstanding venue. The price for main courses ranges from 10 pounds 95 to 14 pounds 25.'
User: 'what is the address and phone number'
System: 'The Backstreet Bistro is on 2 Sturton Street and its phone number is 01223306306.'
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: 'Can I help you with anything else?'
User: 'thai restaurant in the expensive price range'
System: 'The Wrestlers, which serves thai food, is a great restaurant. It's in the expensive price range.'
User: 'unintelligible'
System: 'There is no restaurant in the Girton area and serving thai food.'
User: 'any area'
System: 'Can I help you with anything else?'
User: 'thai restaurant in the expensive price range any area'
System: 'The Wrestlers is a great venue. The price for main courses ranges from 8 pounds 50 to 9 pounds 70 and the price for a cheapest pint of beer is 3 pounds 30.'
User: 'sil'
System: 'The Wrestlers, which serves thai food, is a great restaurant. It's in the expensive price range.'
User: 'whats the address'
System: 'The Wrestlers is located on 337 Newmarket Road.'
User: 'whats the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'whats the phone number'
System: 'The phone number of The Wrestlers is 01223566554.'
User: 'whats the postcode'
System: 'The Wrestlers is in the area with the postcode CB5 8JE.'
User: 'whats the postcode'
System: 'The Wrestlers is in the area with the postcode CB5 8JE.'
User: 'thank you good bye'


Ex Output:

Expensive