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: 'noise'
System: 'What kind of price range are you looking for? For example, free.'
User: 'sil'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, or a restaurant.'
User: 'moderate'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'does not matter'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'restaurant group'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, Girton, or Romsey area.'
User: 'restaurant'
System: 'What part of town do you have in mind? For example, Fen Ditton, or riverside.'
User: 'barnwell'
System: 'What part of town do you have in mind? For example, something in the Castle Hill, Cherry Hinton, or King's Hedges area.'
User: 'barnwell'
System: 'Are you looking for somewhere near a particular venue? For example, the Book and Print Gallery, the Folk Museum, or Trinity College.'
User: 'sil'
System: 'What type of food would you like? For example, East asian, Northern european, or International.'
User: 'sil'
System: 'What type of food would you like? For example, Japanese, or Turkish.'
User: 'international'
System: 'Giraffe, which serves international food, is an outstanding restaurant. It's in the moderate price range.'
User: 'japanese'
System: 'Giraffe, which serves international food, is a great restaurant. It's in the moderate price range.'
User: 'what is the phone number and post code'
System: 'The phone number of Giraffe is 01223300707 and it's in the area with the postcode CB1 1NP.'
User: 'what is the phone number and post code'
System: 'The phone number of Giraffe is 01223300707 and it's in the area with the postcode CB1 1NP.'
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: 'expensive restaurant'
System: 'What type of food would you like? For example, pub, Italian, or Spanish.'
User: 'fenditton area'
System: 'What type of food would you like? For example, Contemporary, Seafood, or Traditional.'
User: 'i dont care'
System: 'Are you looking for somewhere near a particular venue? For example, Cherry Hinton Water Play, the Gallery at twelve A High Street, or the People's Portraits Exhibition.'
User: 'fenditton area'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'expensive restaurant'
System: 'Let me confirm. You don't care about the food and you are looking for a venue.'
User: 'yes'
System: 'Are you looking for somewhere near a particular venue? For example, Clare Hall, the Gallery at twelve A High Street, or the Lammas Land Park.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'no'
System: 'Blue Spice, which is in the expensive price range, is a great restaurant.'
User: 'address'
System: 'Blue Spice is on Unit F1, Cambridge Leisure Park, Clifton Way.'
User: 'phone number'
System: 'The phone number of Blue Spice is 01223413337.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
User: 'type of food'
System: 'Blue Spice is an outstanding restaurant.'
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: 'moderately priced coffee shop'
System: 'What part of town do you have in mind? For example, Addenbrooke's, or Arbury.'
User: 'i dont care'
System: 'What type of food would you like? For example, Chinese take away, American, or Continental.'
User: 'coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, or Queens' College.'
User: 'college'
System: 'What type of food would you like? For example, Chinese take away, Spanish, or Turkish.'
User: 'dont care'
System: 'The Auntie's Tea Shop is an outstanding cafe and it's in the moderate price range.'
User: 'phone number'
System: 'The phone number of the Auntie's Tea Shop is 01223315641.'
User: 'type of food'
System: 'Let me confirm. You don't care about the food. You are looking for a venue.'
User: 'thank you good bye'


Ex Output:

Moderate