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:     You are too picky .  
 Person2:  No , I'm not.Hey , look at that guy over there .  
 Person1:      Which guy ?  
 Person2:  The guy in the blue shirt at the table by the window .  
 Person1:      I can't see him . Where ?  
 Person2:  Right there .  
 Person1:      Oh , I see him now . Wait ! That's ...  
 Person2:  Yes , it's Mel Gibson .  
 Person1:      Oh , wow ! It's really him ! Who is that woman he's with ?  
 Person2:  I don't know . Why don't you go ask for his autograph ?  
 Person1:      I can't do that .  
 Person2:  Why not ? 

0