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:     Is that you , Dave ? Oh , my gosh ! The backstabber who left us to work for the evil WebTracker !  
 Person2:  Yeah , yeah , yeah . Hi , Mary . How are you ?  
 Person1:      I'm filthy rich ! Haven't you heard about the MicroPower deal ?  
 Person2:  Yeah , I guess I did . They're going to buy invoking ?  
 Person1:      That's right . For seventy-five million . So how are you ?  
 Person2:  I'm getting by OK . I heard MicroPower was going to make Zina president of their new invoking Internet division . 

1