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: 'unitelligible'
System: 'What kind of price range are you looking for? For example, expensive, or free.'
User: 'unintelligible'
System: 'What kind of price range are you looking for? For example, cheap, expensive, or moderate.'
User: 'cheap'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'cheap'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'coffee shop'
System: 'What type of food would you like? For example, American, Continental, or Spanish.'
User: 'coffee shop'
System: 'Are you looking for somewhere near a particular venue? For example, Cafe Jello, Little Saint Mary's, or Old Schools.'
User: 'unintelligible'
System: 'What part of town do you have in mind? For example, Addenbrooke's, or Barnwell.'
User: 'city centre'
System: 'Clowns is a great cafe and an outstanding restaurant, it's in the central part of town and it's in the cheap price range.'
User: 'city centre'
System: 'Clowns is an outstanding cafe and a great restaurant and it's in the central part of town. It's in the cheap price range.'
User: 'whats the phone number'
System: 'The phone number of Clowns is 01223355711.'
User: 'what is the restaurant and what is the phone number'
System: 'The phone number of Clowns is 01223355711.'
User: 'okay uh what type of food'
System: 'Clowns serves italian food.'
User: 'what type of food'
System: 'Clowns serves italian food.'
User: 'unintelligible do you have anything else'
System: 'La Raza is a great restaurant, it's in the central part of town and it's in the cheap price range.'
User: 'what type of food'
System: 'La Raza serves spanish food.'
User: 'do you have uh coffee shop'
System: 'Are you looking for a cafe or a restaurant?'
User: 'cafe'
System: 'Clowns, which is a great cafe and an outstanding restaurant, is in the central part of town. It's in the cheap price range.'
User: 'coffee shop'
System: 'Clowns, which is an outstanding cafe and a great restaurant, is in the central part of town. It's in the cheap price range.'
User: 'okay thank you very m thank you goodbye'

Example Output: Cheap

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: 'can i find a turkish restaurant unintelligible'
System: 'The Agora is a great restaurant. It serves turkish food. It's in the expensive price range.'
User: 'price range'
System: 'The Agora is an outstanding venue. The price for main courses ranges from 9 pounds to 11 pounds 50 and the price for a cappuccino is 2 pounds 25.'
User: 'i want to find a turkish restaurant'
System: 'The Agora is a great restaurant, it serves turkish food and it's in the expensive price range.'
User: 'in expenso price range'
System: 'The Anatolia Restaurant, which serves turkish food, is a great restaurant. It's in the expensive price range.'
User: 'can i know the address phone number and the postcode'
System: 'The Anatolia Restaurant is on 30 Bridge Street, its phone number is 01223902117 and it's in the area with the postcode CB2 1UJ. The price for main courses ranges from 11 pounds 50 to 15 pounds 95.'
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: 'im looking for a fast food restaurant'
System: 'Burger King, which serves fastfood, is an outstanding restaurant.'
User: 'oh i need something in the cheap range'
System: 'Burger King is a great restaurant, it serves fastfood and it's in the cheap price range.'
User: 'awesome can i get the address and the price of the venue'
System: 'Burger King is located on The Grafton Centre. The price for main courses ranges from 1 pound 99 to 6 pounds 79.'
User: 'thank you good bye'

Example Output:
Cheap