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:     Where are you going ?  
 Person2:  I'm going to Bill's house .  
 Person1:      What are you going to do there ?  
 Person2:  I'm going to help him .  
 Person1:      What's he doing ?  
 Person2:  He's fixing his roof . 

1