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.

Example 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 moderately priced restaurant in the fen ditton area'
System: 'What type of food would you like? For example, Chinese take away, Middleeastern, or Vegetarian.'
User: 'ah chinese'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, Downing College, or Wandlebury Country Park.'
User: 'fen ditton'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Barnwell, or central area.'
User: 'the fen ditton area'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, Girton, or Trumpington area.'
User: 'thank you good bye'

Example Output: Moderate

Example 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 thai restaurant'
System: 'Let me confirm. You are looking for a thai venue.'
User: 'yes'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'i dont care'
System: 'What part of town do you have in mind? For example, something in the Cherry Hinton, King's Hedges, or Romsey area.'
User: 'i dont care'
System: 'The Wrestlers, which serves thai food, is an outstanding restaurant.'
User: 'whisperingunintelligible'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'can you please give me the address and the price'
System: 'The Wrestlers is on 337 Newmarket Road. 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 is a great restaurant.'
User: 'thank you good bye'

Example Output: Don't Care

Example 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: 'cheap restaurant'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, central, or Romsey area.'
User: 'fenditton area'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, King's Hedges, or Romsey area.'
User: 'fenditton'
System: 'Are you looking for somewhere near a particular venue? For example, Downing College, Great Saint Mary's Church, or the Michaelhouse Centre.'
User: 'fenditton area'
System: 'What part of town do you have in mind? For example, Castle Hill, or Girton.'
User: 'girton'
System: 'What type of food would you like? For example, Chinese take away, or Indian.'
User: 'it dont matter'
System: 'What part of town do you have in mind? For example, Barnwell, or Girton.'
User: 'girton'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Castle Hill, or King's Hedges area.'
User: 'fenditton area'
System: 'What part of town do you have in mind? For example, something in the Arbury, Cherry Hinton, or Romsey area.'
User: 'noise'
System: 'What part of town do you have in mind? For example, Barnwell, or Trumpington.'
User: 'thank you'
System: 'Can I help you with anything else?'
User: 'thank you goodbye'

Example Output:
Cheap