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:     What's your favorite book ?  
 Person2:  It's Gone With the Wind .  
 Person1:      Why do you like it best ?  
 Person2:  I enjoy the various characters and the plot .  
 Person1:      Well . I like the Thom Birds best .  
 Person2:  Is it very interesting ?  
 Person1:      Sure . I like the writer's language , too .  
 Person2:  If I have a chance , I'll enjoy the book .  
 Person1:      Would you like to go to the bookshop with me ?  
 Person2:  That's a good idea.Let ' s go ! 

1