Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     Ten sheets of rice paper , 25 brushes , two boxes of oil color and two boxes of water color . All these come up to $ 35.50 , sir . 
 Person2:  Ok , here is $ 50 . Oh , can you make out an invoice for me ? 
 Person1:      Sure , just a minute . Are you an artist , sir ? 
 Person2:  No , I am a teacher . I teach art . 
 Person1:      That must be a very interesting job . 
 Person2:  It is . You must be new here . I do my shopping here regularly , once a week . 
 Person1:      Do you ? Nice to meet you ! And here is the invoice and your change . 
 Person2:  Thank you . Nice to meet you , too . 

0