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: 'i need to find and expensive restaurant in the trumpington area'
System: 'What type of food would you like? For example, pub, Fusion, or Traditional.'
User: 'traditional'
System: 'What type of food would you like? For example, International, Thai, or Vegetarian.'
User: 'international'
System: 'There is no restaurant in the Trumpington area and serving international food.'
User: 'expensive restaurant in the trumpington area'
System: 'There is no restaurant serving international food in the expensive price range.'
User: 'restaurant in the trumpington area'
System: 'Would you like an international food, or you don't care?'
User: 'dont care'
System: 'The Oak Bistro is a great restaurant, it's in the Trumpington part of town and it's in the expensive price range.'
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: 'a japanese restaurant'
System: 'What kind of price range are you looking for? For example, expensive, free, or moderate.'
User: 'any'
System: 'What kind of price range are you looking for? For example, cheap, or expensive.'
User: 'any kind'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'moderate moderate moderate moderate'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Newnham area.'
User: 'dont care'
System: 'Yippee Noodle Bar, which serves chinese take away and japanese food, is a great restaurant. It's in the moderate price range.'
User: 'whats the phone number'
System: 'The phone number of Yippee Noodle Bar is 01223518111.'
User: 'noise sil'
System: 'Yippee Noodle Bar is a great restaurant.'
User: 'and the address please'
System: 'Yippee Noodle Bar is located on 7-9 King Street.'
User: 'what is the address'
System: 'Yippee Noodle Bar is on 7-9 King Street.'
User: 'thank you'
System: 'Can I help you with anything else?'
User: 'good bye'


Ex Output:
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: 'i want to find an expensive restaurant in the addenbrookes area'
System: 'The Lucky Star, which is in the Addenbrooke's part of town, is a great restaurant. It's in the expensive price range.'
User: 'what type of food'
System: 'The Lucky Star serves chinese food.'
User: 'and the address please'
System: 'The Lucky Star is on Unit.'
User: 'ok thank you good bye'


Ex Output:

Expensive