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 do you think of smoking ?  
 Person2:  It ’ s harmful not only for yourself but for others .  
 Person1:      What in your opinion can be done to stop smoking ?  
 Person2:  Stop producing cigarettes .  
 Person1:      But that ’ ll affect the national economy .  
 Person2:  That ’ s right . But I don ’ t think there are better ways .  
 Person1:      How about printing a warning on each cigarette packet ?  
 Person2:  Maybe it can take effect . 

1