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: 'expensive restaurant in castle hill area'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or free.'
User: 'expensive'
System: 'What type of food would you like? For example, Drinks and snacks only, pub, or French.'
User: 'any'
System: 'What part of town do you have in mind? For example, something in the Fen Ditton, Girton, or riverside area.'
User: 'castle hill area'
System: 'What type of food would you like? For example, Chinese take away, Italian, or Thai.'
User: 'italian'
System: 'What part of town do you have in mind? For example, something in the riverside, Romsey, or Trumpington area.'
User: 'castle hill area'
System: 'What kind of price range are you looking for? For example, cheap, free, or moderate.'
User: 'expensive'
System: 'Ask is a great restaurant, it serves italian food and it's in the expensive price range.'
User: 'is it in the castle hill area'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Castle Hill, or Newnham area.'
User: 'castle hill'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, Magdalene College, or Pembroke College.'
User: 'no'
System: 'Ask is an outstanding restaurant, it serves italian food and it's in the expensive price range.'
User: 'what is the phone number'
System: 'The phone number of Ask is 01223364917.'
User: 'thank you'
System: 'Ask is a great restaurant.'
User: 'thank you goodbye'

Example Output: Expensive

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: 'i would like an expensive restaurant in the romsey area'
System: 'The Backstreet Bistro, which is in the Romsey part of town, is a great restaurant. It's in the expensive price range.'
User: 'may i have the address and phone number'
System: 'The Backstreet Bistro is located on 2 Sturton Street and its phone number is 01223306306.'
User: 'what type of food is served'
System: 'The Backstreet Bistro serves contemporary and english food.'
User: 'thank you good bye'

Example Output: Expensive

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: 'japanese restaurant'
System: 'Are you looking for somewhere near a particular venue? For example, Emmanuel College, Jesus College, or Magdalene College.'
User: 'japanese restaurant'
System: 'What part of town do you have in mind? For example, Cherry Hinton, or central.'
User: 'i dont care'
System: 'Yippee Noodle Bar is an outstanding restaurant. It serves chinese take away and japanese food.'
User: 'japanese restaurant'
System: 'Yippee Noodle Bar, which serves chinese take away and japanese food, is an outstanding restaurant.'
User: 'japanese restaurant'
System: 'Yippee Noodle Bar, which serves chinese take away and japanese food, is an outstanding restaurant.'
User: 'moderate price range'
System: 'Yippee Noodle Bar is an outstanding venue. The price for main courses ranges from 7 pounds 30 to 11 pounds 40.'
User: 'can you give me the address and post code'
System: 'Yippee Noodle Bar is located on 7-9 King Street and it's in the area with the postcode CB1 1LH.'
User: 'coughing sil'
System: 'The Wrestlers, which serves thai food, is a great restaurant.'
User: 'address and post code'
System: 'The Wrestlers, which is in the area with the postcode CB5 8JE, is located on 337 Newmarket Road.'
User: 'thank you good bye'

Example Output:
Moderate