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:     John , have you ever watched Beijing Opera ?  
 Person2:  Yes , I watched once .  
 Person1:      What do you think of it ?  
 Person2:  Well , honestly speaking , I went to watch it out of curiosity . I ’ d say it ’ s really a special art form .  
 Person1:      I couldn ’ t agree more . Actually , I ’ m a Beijing Opera fan .  
 Person2:  Really ? Good for you . 

1