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: 'im just looking for a cheap pub'
System: 'The Baron of Beef is an outstanding pub and it's in the cheap price range.'
User: 'ah does it have a tv'
System: 'The Baron of Beef, which has a television, is in the cheap price range. It's a great pub.'
User: 'and whats the address'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'is that the only address'
System: 'The Baron of Beef is located on Bridge Street.'
User: 'where on bridge street is it located'
System: 'The Baron of Beef is a great pub.'
User: 'does it have a more specific address'
System: 'The Baron of Beef is located on Bridge Street.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise sil'
System: 'What kind of venue are you looking for? For example, a cafe, or a pub.'
User: 'noise looking for a coffee shop serving italian food'
System: 'Are you looking for somewhere near a particular venue? For example, the Gallery at twelve A High Street, the Ruskin Gallery, or the Lammas Land Park.'
User: 'coffee shop with italian food'
System: 'What part of town do you have in mind? For example, something in the Addenbrooke's, Arbury, or Fen Ditton area.'
User: 'reston gallery'
System: 'Caffe Nero, which serves italian food, is an outstanding cafe.'
User: 'fenditton'
System: 'What part of town do you have in mind? For example, something in the Barnwell, Chesterton, or Newnham area.'
User: 'what is the address'
System: 'Caffe Nero is located on 11 Market Street.'
User: 'any area'
System: 'Caffe Nero is an outstanding cafe.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
User: 'what is the post code'
System: 'Caffe Nero is in the area with the postcode CB2 3PA.'
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: 'sil'
System: 'What kind of venue are you looking for? For example, a pub, or a restaurant.'
User: 'a restaurant'
System: 'What type of food would you like? For example, Greek, Middleeastern, or Traditional.'
User: 'any type'
System: 'What part of town do you have in mind? For example, Arbury, or New Chesterton.'
User: 'girton'
System: 'Are you looking for somewhere near a particular venue? For example, Little Saint Mary's, or Milton Country Park.'
User: 'no'
System: 'Blue Spice, which is in the Girton part of town, is an outstanding restaurant.'
User: 'can you give me the address'
System: 'Blue Spice is located on Unit F1, Cambridge Leisure Park, Clifton Way. The price for main courses ranges from 12 pounds 50 to 12 pounds 50.'
User: 'can you give me a cheaper restaurant'
System: 'The Dojo Noodle Bar is an outstanding restaurant. It's in the Girton part of town. It's in the cheap price range.'
User: 'sil'
System: 'The Dojo Noodle Bar, which is in the Girton part of town, is a great restaurant. It's in the cheap price range.'
User: 'can you give me a moderately priced restaurant'
System: 'The Rainbow Cafe, which is in the Girton part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'can you give me the address'
System: 'The Rainbow Cafe is located on 9a King's Parade.'
User: 'and its phone number please'
System: 'The phone number of the Rainbow Cafe is 01223321551.'
User: 'postal code'
System: 'The Rainbow Cafe is in the area with the postcode CB2 1SJ.'
User: 'thats wonderful goodbye thank you'
System: 'Yippee Noodle Bar is an outstanding restaurant. It's in the central part of town. It's in the moderate price range.'
User: 'thats all the information i want goodbye thank you'
System: 'Yippee Noodle Bar, which is in the central part of town, is an outstanding restaurant. It's in the moderate price range.'
User: 'thank you goodbye'


Ex Output:

Moderate


