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: 'yes im looking for a moderately priced coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, All Saints Church, the University Botanic Gardens, or Hughes Hall.'
User: 'yes girton area'
System: 'The Auntie's Tea Shop, which is in the Girton part of town, is a great cafe. It's in the moderate price range.'
User: 'the girton area'
System: 'The Auntie's Tea Shop, which is in the Girton part of town, is a great cafe. It's in the moderate price range.'
User: 'uh that sounds good can i get the address'
System: 'The Auntie's Tea Shop is a great cafe.'
User: 'yes can i get the address phone number and post code'
System: 'The Auntie's Tea Shop, which is in the area with the postcode CB2 3PQ, is located on 1 Saint Mary's Passage. Its phone number is 01223315641.'
User: 'i want the address phone number and post code please'
System: 'The Auntie's Tea Shop, which is in the area with the postcode CB2 3PQ, is on 1 Saint Mary's Passage. Its phone number is 01223315641.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, a pub, or a restaurant.'
User: 'yes im looking for a pub food restaurant and it should have cheap price range'
System: 'Are you looking for somewhere near a particular venue? For example, Clare College, or Sidney Sussex College.'
User: 'no'
System: 'The Fountain Inn, which serves pub food, is an outstanding restaurant. It's in the cheap price range.'
User: 'what is the address phone number and the price'
System: 'The Fountain Inn is located on 12 Regent Street and its phone number is 01223366540. The price for main courses ranges from 4 pounds 95 to 7 pounds 95 and the price for a glass of wine ranges from 3 pounds to 4 pounds 50 and the price for a cheapest pint of beer is 2 pounds.'
User: 'thank you goodbye'


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 price range are you looking for? For example, cheap, free, or moderate.'
User: 'cheap restaurant castle hill area'
System: 'What type of food would you like? For example, Fastfood, International, or Seafood.'
User: 'doent matter'
System: 'Are you looking for somewhere near a particular venue? For example, Great Saint Mary's Church, Holy Trinity Church, or Old Schools.'
User: 'no'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Girton, or Trumpington area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, Addenbrooke's.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Cherry Hinton, or King's Hedges area.'
User: 'castle hill'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or New Chesterton area.'
User: 'thank you good bye'


Ex Output:

Cheap