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:     Hey Jack . How were your classes this semester ?  
 Person2:  They were not too bad . I really liked my poli-sci class .  
 Person1:      Would you consider it your favorite class ?  
 Person2:  I don't know if I would call it my favorite , but it ranks up there .  
 Person1:      What class was your favorite then ?  
 Person2:  I took a business communication class last year and it was terrific .  
 Person1:      I never took that yet . If that was your favorite , I think I will check it out . 

1